If the market meets the conditions of perfect competition. General characteristics of the market of perfect competition

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What is pure competition? Description and definition of the concept.

Pure competition- these are prosperous conditions in the market, when there are many buyers and many sellers, and there is also a complete lack of monopoly.
When there is no barrier to entry or exit from the market, information about the quality and price of the product is available to all market participants.

A large number of consumers and an abundance of goods cannot affect the price and quantity of products. Both the seller and the consumer depend on the dynamics of the market.

In order to have a higher profit from the sale of products or goods, this is to use some advanced technologies, both in the manufacture of products and in their sale, which will cause a decrease in cost, and hence there will be an increase in profits.

Pure, perfect, free competition is an idealized state of the market, an economic model, when individual sellers and buyers cannot influence the price, but form it with their contribution of supply and demand. That is, it is a kind of market structure, where the market behavior of buyers and sellers lies in the adaptation to the equilibrium state of market conditions.

Let us consider, in more detail, what pure competition means.

Features of pure competition

Features of perfect competition:

  • divisibility and homogeneity of products sold. It is understood that sellers or manufacturers produce such a product that can be completely replaced by products of other market participants;
  • an infinite number of equal buyers and sellers. That is, all the demand that is on the market must be covered by more than one or several enterprises, as in the case of monopoly and oligopoly;
  • high mobility of production factors. Neither the state, nor specific sellers or manufacturers should influence pricing. The price of goods should determine the cost of production, the level of demand, as well as supply;
  • no barriers to exit or entry to the market. Examples can be a variety of small business areas where special requirements are not created and special licenses or other permits are not needed. These include: atelier, shoe repair shop and similar establishments;
  • full and equal access of all participants to information (on the price of goods).

In a situation where at least one feature is missing, competition is imperfect. In a situation where these signs are removed artificially in order to occupy a monopoly position in the market, the situation is called unfair competition.

One of the widely used types of unfair competition in some countries is the giving of bribes, implicitly and explicitly, to various representatives of the state in exchange for various kinds of preferences.

David Ricardo revealed a tendency, natural in conditions of absolute competition, to reduce the economic profit of each seller.

The exchange market in a real economy is most like a market of perfect competition. Keynesians in observing phenomena economic crises came to the conclusion that this form of competition usually suffers a fiasco, which can be overcome only with the help of external intervention.

Improving production, reducing production costs, automating all processes, optimizing the structure of enterprises - all this is an important condition for development modern business.

What is the best incentive for businesses to do this? exclusively and only market. The market, in this sense, is a competition that arises between enterprises that manufacture or sell similar products.

In the case when there is a sufficiently high level of adequate competition, this seriously affects the quality of goods or services sold on the market.

Because every manufacturer wants to be the best, so he is interested in having the highest quality products and the lowest production costs. This is a condition for existence in a competitive market.

Perfect competition in the market

Perfect competition, as mentioned above, is the absolute opposite of monopoly.

In other words, this is a market in which an unlimited number of sellers operate who sell the same or similar goods and at the same time cannot influence its final cost in any way.

The state, in turn, should not influence the market or engage in its full regulation, since this can affect the number of sellers, as well as the volume of products on the market, which will instantly affect the cost per unit of production (goods or services).

However, unfortunately, such ideal conditions for doing business in real market conditions cannot exist for a long time. That is, perfect competition is a fickle and temporary phenomenon. Ultimately, the market becomes either an oligopoly or some other form of imperfect competition.

Perfect competition can lead to decline. This may be due to the fact that in the long run there is a constant decrease in prices. The human resource in the world is quite large, while the technological one is very limited.

Over time, all enterprises will gradually go through the process of modernization of all major production assets and all production processes, and the price will still continue to fall due to the attempts of competitors to conquer a larger market.

And this will already lead to functioning on the verge of the break-even point or below it. It will be possible to save the market only by outside influence.

Perfect competition is extremely rare. In the real world, it is impossible to give examples of perfectly competitive firms, since there simply is no market that functions in this way. Although there are some segments that are as close as possible to its conditions.

To find such examples, it is necessary to find those markets in which small business mainly operates. As already mentioned, if any firm can enter the market where this segment operates, and also easily leave it, then this is a sign of perfect competition.

If we talk about imperfect competition, then monopoly markets are its brightest representative. Enterprises that operate in such conditions have no incentive to develop and improve. In addition, they produce such goods and provide such services that cannot be replaced by any other product.

An entire sector of the economy can be called an example of such a market - the oil and gas industry, and Gazprom is a monopoly company. An example of a perfectly competitive market is the automotive repair industry. All kinds of service stations and car repair shops, both in the city and in others settlements, there are many.

Almost everywhere the same services are provided, and approximately the same amount of work is performed. If there is perfect competition in the market, then it becomes impossible to artificially increase the prices of goods in the legal field. We see examples of this in everyday life, in ordinary markets.

For example, one fruit seller raised the price of apples by 10 rubles, although their quality is the same as that of competitors, in this case, buyers will not buy goods from him at that price. If the monopolist has influence on the price by raising or lowering it, then in this case such methods are not suitable.

Under perfect competition, it is impossible to raise the price on its own, unlike a monopoly enterprise. Due to competition in the market, you can't just raise the price as all customers will be looking for more bargain purchase goods. Thus, an enterprise can lose its market share, and this will entail disastrous consequences.

Some people reduce the cost of the goods offered. This is done in order to “win back” new market shares and increase revenue levels. To reduce prices, it is necessary to reduce the cost of raw materials.

And this, in turn, is possible due to the use of new technologies, production optimization and other processes, which allow saving costs on raw materials. In Russia, markets that are close to perfect competition are not developing fast enough.

Examples of a perfect economy can be found in almost all areas of small business. If we talk about the domestic market, we can see that a perfect economy in it is developing at an average pace, but it could be better.

Weak support from the state significantly hinders its development, since so far many laws are focused on supporting large producers, which in turn are monopolists.

Therefore, the small business sector remains without much attention and without proper funding.

Perfect competition, examples of which are listed above, is an ideal form of competition from the understanding of pricing, supply and demand criteria. Nowadays, not a single country, not a single economy in the world, can boast of such a market that would meet absolutely all the requirements that a market must meet with perfect competition.

We briefly considered what pure competition is, its distinctive features, as well as examples in the global market. Leave your comments or additions to the material.

Competition(lat. concurrentia, from lat. concurro - running away, colliding) - struggle, rivalry in any area. In the economy, it is a struggle between economic entities for the maximum effective use production factors.

Competitiveness- the ability of a certain object or subject to outperform competitors in given conditions.

The lower the firm's ability to influence the market, the more competitive the industry is considered to be. In the limiting case, when the degree of influence of one firm is equal to zero, one speaks of a perfectly competitive market.

In the scientific language, there are two different understandings of the term “competition”. Competition as a characteristic of the market structure (market competitiveness, perfect, monopolistic competition) and competition as a way of interaction between firms in the market (competition, price and non-price competition).

The terms used to refer to various types of market structures come from the Greek language and characterize, on the one hand, the belonging of economic entities to sellers or buyers (poleo - sell, psoneo - buy), and on the other hand, their number (mono - one, oligos - a few, poly - a lot).

Since the structure of a particular market is determined by many factors, the number of market structures is practically unlimited.

To simplify the analysis in economic theory It is customary to distinguish four basic models:

  • perfect competition;
  • pure monopoly;
  • monopolistic competition;
  • homogeneous and heterogeneous oligopoly

Perfect Competition

Perfect competition is a state of the market in which there are a large number of buyers and sellers (manufacturers), each of which occupies a relatively small share of the market and cannot dictate the conditions for the sale and purchase of goods.

It is supposed to have the necessary and accessible information about prices, their dynamics, sellers and buyers not only in this place, but also in other regions and cities.

The market of perfect competition implies the absence of the power of the producer over the market and the setting of the price not by the producer, but through the function of supply and demand.

Features of perfect competition are not inherent in any of the industries in full. All of them can only approach the model.

The features of an ideal market (market of perfect competition) are:

  1. the absence of entry and exit barriers in a particular industry;
  2. no restrictions on the number of market participants;
  3. homogeneity of similar products presented on the market;
  4. free prices;
  5. lack of pressure, coercion from some participants in relation to others

Creating an ideal model of perfect competition is an extremely complex process. An example of an industry close to a perfectly competitive market is agriculture.

Imperfect Competition

Imperfect competition - competition in conditions where individual producers have the ability to control the prices of the products they produce. Perfect competition is not always possible in the market. Monopolistic competition, oligopoly and monopoly are forms of imperfect competition. With a monopoly, it is possible for the monopolist to crowd out other firms from the market.

Signs of imperfect competition are:

  1. dumping prices
  2. creation entry barriers to the market of any goods
  3. price discrimination (selling the same product at different prices)
  4. use or disclosure of confidential scientific, technical, industrial and trade information
  5. dissemination of false information in advertising or other information regarding the method and place of manufacture or quantity of goods
  6. omission of important consumer information

Losses from imperfect competition:

  1. unjustified price increase
  2. increase in production and distribution costs
  3. slowdown in scientific and technological progress
  4. decrease in competitiveness in world markets
  5. decline in the efficiency of the economy.

Monopoly

A monopoly is an exclusive right to something. With regard to the economy - the exclusive right to manufacture, purchase, sell, owned by one person, a certain group of persons or the state.

Arises on the basis of high concentration and centralization of capital and production. The goal is to extract ultra-high profits. Provided by setting monopoly high or monopoly low prices.

Suppresses competitive potential market economy leads to higher prices and disproportions.

Monopoly Model:

  • sole seller;
  • lack of close substitute products;
  • dictated price.

It is necessary to distinguish between natural monopoly, that is, structures whose demonopolization is either impractical or impossible: public utilities, the subway, energy, water supply, etc.

Monopolistic competition

Monopolistic competition occurs when many sellers compete to sell a differentiated product in a market where new sellers can enter.

A market with monopolistic competition is characterized by the following:

  1. the product of each firm trading in the market is an imperfect substitute for the product sold by other firms;
  2. there are a relatively large number of sellers in the market, each of which satisfies a small but not microscopic share of the market demand for a common type of product sold by the firm and its rivals;
  3. sellers in the market do not consider the reaction of their rivals when choosing what price to set their goods or when choosing annual sales targets;
  4. the market has conditions for entry and exit

Monopolistic competition is similar to a monopoly situation in that individual firms have the ability to control the price of their goods. It is also similar to perfect competition, since each product is sold by many firms, and there is free entry and exit in the market.

Oligopoly

Oligopoly is a type of market in which not one, but several firms dominate each sector of the economy. In other words, there are more producers in an oligopolistic industry than in a monopoly, but significantly fewer than in a perfect competition.

As a rule, there are 3 or more participants. A special case of an oligopoly is a duopoly. Price controls are very high, barriers to entry into the industry are high, and there is significant non-price competition. An example would be the operators cellular communication and the housing market.

Antitrust policy

All developed countries of the world have antitrust laws that restrict the activities of monopolies and their associations.

The antimonopoly policy in European countries is more aimed at regulating already established monopolies, regardless of how they achieved their monopoly position, and this regulation does not imply structural changes, that is, it does not contain requirements for deconcentration, splitting firms into independent enterprises.

For the state antimonopoly policy of the United States, first of all, and certainly, such a position is characteristic, according to which it is not at all necessary to deprive a firm of monopoly high profits if it has achieved a monopoly position in the market "due to higher business qualities, ingenuity, or just a happy accident.

In addition to price regulation, reforming the structure of natural monopolies can also bring certain benefits - especially in Russia.

The fact is that in Russia, within the framework of a single corporation, both the production of natural monopoly goods and the production of goods that are more efficient to produce under competitive conditions are often combined.

This association is, as a rule, the nature of vertical integration. As a result, a giant monopoly is formed, representing a whole sphere of the national economy.

In general, the system of antimonopoly regulation in Russia is still in its infancy and requires radical improvement. In Russia, the body of antimonopoly regulation is the Federal Antimonopoly Service of Russia.

Objects with competitiveness can be divided into four groups:

  • products,
  • enterprises (as producers of goods),
  • industries (as a set of enterprises offering goods or services),
  • regions (districts, regions, countries or their groups).

In this regard, it is customary to talk about its types such as:

  • National Competitiveness
  • Product competitiveness
  • Enterprise competitiveness

In addition, it is fundamentally possible to distinguish four types of subjects that evaluate the competitiveness of certain objects:

  • consumers,
  • manufacturers,
  • investors,
  • state.

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Perfect and imperfect competition: essence and characteristics


Evgeny Malyar

# business vocabulary

In reality, competition is always imperfect, and is divided into types, depending on which condition corresponds to the market to a greater extent.

  • Characteristics of perfect competition
  • Signs of perfect competition
  • Conditions close to perfect competition
  • Advantages and disadvantages of perfect competition
  • Advantages
  • disadvantages
  • perfect competition market
  • Imperfect Competition
  • Signs of imperfect competition
  • Types of imperfect competition

Everyone is familiar with the concept of economic competition. This phenomenon is observed at the macroeconomic and even household level. Every day, choosing this or that product in the store, every citizen, willingly or not, participates in this process. And what is the competition, and, finally, what is it in general from a scientific point of view?

Characteristics of perfect competition

To begin with, a general definition of competition must be adopted. Regarding this objectively existing phenomenon, accompanying economic relations from the moment of their inception, various concepts have been put forward, from the most enthusiastic to completely pessimistic.

According to Adam Smith, expressed in his Inquiries into the Nature and Causes of the Wealth of Nations (1776), competition with its "invisible hand" transforms the selfish motives of the individual into socially useful energy. The theory of a self-regulating market assumes the denial of any state intervention in the natural course of economic processes.

John Stuart Mill, who was also a great liberal and a supporter of maximum individual economic freedom, was more cautious in his judgments, comparing competition with the sun. Probably, this eminent scientist also understood that on a too hot day a little shade is also a blessing.

Any scientific concept involves the use of idealized tools. Mathematicians refer to this as having no width "line" or dimensionless (infinitely small) "point". Economists have a concept of perfect competition.

Definition: Competition is the competitive interaction of market participants, each of which seeks to obtain the greatest profit.

As in any other science, in economic theory a certain ideal model of the market is adopted, which does not fully correspond to the realities, but allows one to study the ongoing processes.

Signs of perfect competition

The description of any hypothetical phenomenon requires criteria to which a real object should (or can) aspire. For example, doctors consider a healthy person with a body temperature of 36.6 ° and a pressure of 80 to 120. Economists, listing the features of perfect competition (also called pure competition), also rely on specific parameters.

The reasons why it is impossible to achieve the ideal are not important in this case - they are inherent in human nature itself. Each entrepreneur, receiving certain opportunities to assert their positions in the market, will definitely use them. However, hypothetical Perfect competition is characterized by the following features:

  • An infinite number of equal participants, which are understood as sellers and buyers. The convention is obvious - nothing limitless exists within our planet.
  • None of the sellers can influence the price of the product. In practice, there are always the most powerful participants capable of carrying out commodity interventions.
  • The proposed commercial product has the properties of uniformity and divisibility. Also purely theoretical. An abstract commodity is something like grain, but even it can be of different quality.
  • Complete freedom of participants to enter or leave the market. In practice, this is sometimes observed, but by no means always.
  • Possibility of problem-free movement of production factors. Imagine, for example, a car factory that can be easily transferred to another continent, of course, you can, but this requires imagination.
  • The price of a product is formed solely by the ratio of supply and demand, without the possibility of influence of other factors.
  • And, finally, full public availability of information about prices, costs and other information, in real life, most often trade secret. There are no comments here at all.

After considering the above features, the conclusions are:

  1. Perfect competition in nature does not exist and cannot even exist.
  2. The ideal model is speculative and necessary for theoretical market research.

Conditions close to perfect competition

The practical utility of the concept of perfect competition lies in the ability to calculate the optimal equilibrium point of the firm, taking into account only three indicators: price, marginal cost and minimum total cost.

If these figures are equal to each other, the manager gets an idea of ​​​​the dependence of the profitability of his enterprise on the volume of production.

This intersection point is visually illustrated by a graph on which all three lines converge:

Where: S is the amount of profit; ATC is the minimum gross cost; A is the equilibrium point; MC is the marginal cost; MR is the market price of the product;

Q is the volume of production.

Advantages and disadvantages of perfect competition

Since perfect competition as an ideal phenomenon in the economy does not exist, its properties can only be judged by individual features that manifest themselves in some cases from real life (at the maximum possible approximation). Speculative reasoning will also help to determine its hypothetical advantages and disadvantages.

Advantages

Ideally, such competitive relations could contribute to the rational distribution of resources and the achievement of the greatest efficiency in production and commercial activities.

The seller is forced to reduce costs, since the competitive environment does not allow him to raise the price.

In this case, new economical technologies, high organization of labor processes and all-round thrift can serve as means of achieving advantages.

In part, all this is observed in real conditions of imperfect competition, but there are examples of a literally barbaric attitude towards resources on the part of monopolies, especially if state control is weak for some reason.

An illustration of the predatory attitude to resources can be the activities of the United Fruit company, which for a long time ruthlessly exploited the natural resources of the countries of South America.

disadvantages

It should be understood that even in its ideal form, perfect (aka pure) competition would have systemic flaws.

  • First, its theoretical model does not provide for economically unjustified spending on achieving public goods and raising social standards (these costs do not fit into the scheme).
  • Secondly, the consumer would be extremely limited in the choice of a generalized product: all sellers offer in fact the same thing and at about the same price.
  • Third, an infinitely large number of producers leads to a low concentration of capital. This makes it impossible to invest in large-scale resource-intensive projects and long-term scientific programs, without which progress is problematic.

Thus, the position of the firm under conditions of pure competition, as well as the position of the consumer, would be very far from ideal.

perfect competition market

Closest to the idealized model on present stage is considered an exchange type of market. Its participants do not have bulky and inert assets, they easily enter and leave the business, their product is relatively homogeneous (estimated by quotations).

There are many brokers (although their number is not infinite) and they operate mainly with supply and demand values. However, the economy does not consist of exchanges alone.

In reality, competition is imperfect, and is divided into types, whichever condition suits the market best.

Profit maximization in conditions of perfect competition is achieved exclusively by price methods.

The characteristics and model of the market are important for determining the possibilities of functioning in conditions of imperfect competition. It is hard to imagine that a huge number of sellers offer absolutely the same type of product, which is in demand among an unlimited number of buyers. This is the ideal picture, suitable only for conceptual reasoning.

In the real world, competition is always imperfect. However, there is only one common feature markets of perfect and monopolistic competition (the most common) and it consists in the competitive nature of the phenomenon.

There is no doubt that business entities seek to achieve advantages, take advantage of them and develop success up to full mastery of all possible sales volumes.

In all other respects, perfect competition and monopoly differ significantly.

Signs of imperfect competition

Since the ideal model of "capitalist competition" has been discussed above, it remains to analyze its differences from what happens in a functioning world market. The main signs of real competition include the following points:

  1. The number of producers is limited.
  2. Barriers, natural monopolies, fiscal and licensing restrictions objectively exist.
  3. Market entry can be difficult. Exit too.
  4. Products are produced in a variety of quality, price, consumer properties and other characteristics. However, they are not always separable. Is it possible to build and sell half of a nuclear reactor?
  5. Mobility of production takes place (in particular, towards cheap resources), but the processes of moving capacities themselves are very costly.
  6. Individual participants have the opportunity to influence the market price of the product, including non-economic methods.
  7. Technology and pricing information is not public.

From this list it is clear that the real conditions modern market are not only far from the ideal model, but most often contradict it.

Types of imperfect competition

Like any non-ideal phenomenon, imperfect competition is characterized by a variety of forms. Until recently, economists simplistically divided them according to the principle of functioning into three categories: monopoly, oligopolistic and monopolistic, but now two more concepts have been introduced - oligopsony and monopsony.

These models and types of imperfect competition deserve detailed consideration.

Monopsony

This type of imperfect competition occurs when only one consumer can purchase a manufactured product.

There are types of products intended, for example, exclusively for state structures (powerful weapons, special equipment). In economic terms, monopsony is the opposite of monopoly.

This is a kind of dictate of a single buyer (and not a manufacturer), and it is not common.

There is also a phenomenon in the labor market. When only one works in a city, for example, a factory, then ordinary person opportunities to sell their labor are limited.

Oligopsony

It is very similar to monopsony, but there is a choice of buyers, albeit small. Most often, such imperfect competition occurs between manufacturers of components or ingredients intended for large consumers.

For example, some recipe component can only be sold to a large confectionery factory, and there are only a few of them in the country.

Another option - a tire manufacturer seeks to interest one of the car factories for the regular supply of its products.

As a result, we note: any competition that exists in real conditions is as imperfect as the market itself. From the point of view of economic theory, perfect competition is a simplified concept. It is far from ideal, but necessary. Doesn't it surprise anyone that physicists use different mathematical models and scientific assumptions?

Imperfect competition is diverse in forms, and it is possible that new ones will be added to its already existing types in the future.

Perfect Competition

Competition is the basic concept of economics. It refers to the rivalry of subjects (companies, organizations, firms or individuals) in any segment of the economy in order to capture the market and make a profit.

Economists distinguish two types of competition:

Perfect
Imperfect (monopolistic, oligopoly and absolute monopoly).

The article discusses perfect competition in detail.

Definition of perfect competition

Perfect (pure) competition is a market model in which many sellers and buyers interact. At the same time, all subjects of market relations have equal rights and opportunities.

Imagine that there is a market for rye flour. It interacts with sellers (5 firms) and buyers. The rye flour market is designed in such a way that it can be easily entered new member offering its products. In this market model, there is perfect (pure) competition.

A distinctive feature of the market of pure competition is that the seller and the buyer cannot influence the price of the goods. The price of a product is determined by the market.

Necessary Conditions for Perfect Competition

In order for the same product to have the same price from different sellers in the same period of time, the following conditions must be met:

1. Homogeneity of the market; 2. Unlimited number of sellers and buyers of the product;3.

No monopoly (one influential manufacturer that captured the lion's share of the market) and monopsony (the only buyer of the product); 4.

Prices for goods are set by the market, and not by the state or interested persons; 5. Equal opportunities for conducting economic and economic activities for all members of the society;

6. open information about the main economic indicators all market players. It is about the demand, supply and prices of the product. In a market of pure competition, all indicators are considered fairly;

7. Mobile factors of production;

8. The impossibility of a situation where one market entity influences the rest by non-economic methods.

If these conditions are met, perfect competition is established in the market. Another thing is that in practice this does not happen. Let's look at why next.

Pure competition - abstraction or reality?

There is no perfect competition in real life. Any market consists of living people who pursue their own interests and have leverage over the process. There are three main barriers that prevent a new firm from simply entering the market:

Economic. Trade marks, brands, patents and licenses. Organizations that have been on the market for a long time are sure to patent their product.

This is done so that newcomers cannot simply copy the product and start a successful trade; Bureaucratic. With any number of approximately equal producers, a dominant firm always stands out.

It is she who has the power in the market and sets the price of the product;

Mergers and acquisitions. Large enterprises buy up new, developing firms. This is done to introduce new technologies and expand the range of the enterprise under one brand. An effective way to compete with successful newcomers.

Economic and bureaucratic obstacles greatly increase the costs for newcomers to enter the market. Business leaders ask themselves questions:

1. Will the income from the sale of products cover the costs of promotion and development?
2. Will my business be profitable?

The purpose of barriers to entry is to prevent new businesses from gaining a foothold in the market. Theoretically, any enterprise can become a new monopolist. There have been such cases in history. Another thing is that in percentage terms it will be 1-2% of 100% of new enterprises.

Markets close to pure competition

If pure competition is an abstraction, why is it needed? An economic model is needed in order to study the laws of the market and more complex types of competition. Perfect competition plays a very important role in the economy:

1. Almost perfect competition emerges in some markets. This includes agriculture, securities and precious metals. Knowing the model of perfect competition, it is quite easy to predict the fate new company.
2. Pure competition is a simple economic model. It allows comparison with other types of competition.

Perfect competition, like other types of rivalry between economic entities, is an integral part of market relations.

Perfect competition. Examples of perfect competition

Improving production, reducing production costs, automating all processes, optimizing the structure of enterprises - all this is an important condition for the development of modern business. What is the best way to get businesses to do all this? Market only.

The market is understood as the competition that occurs between enterprises that produce or sell similar products. If there is a high level of healthy competition, then in order to exist in such a market, it is necessary to constantly improve the quality of the product and reduce the level of total costs.

The concept of perfect competition

Perfect competition, examples of which are given in the article, is the complete opposite of monopoly. That is, it is a market in which an unlimited number of sellers operate who deal with the same or similar goods and at the same time cannot influence its price.

At the same time, the state should not influence the market or engage in its full regulation, since this can affect the number of sellers, as well as the volume of products on the market, which is immediately reflected in the price per unit of goods.

Despite the seemingly ideal conditions for doing business, many experts are inclined to believe that perfect competition will not be able to exist in the market for a long time in real conditions. Examples that confirm their words have happened more than once in history. AT end result the market became either an oligopoly or some other form of imperfect competition.

Perfect competition can lead to decline

This is due to the fact that in the long run there is a constant decrease in prices. And if human resource in the world is big, here the technological is very limited. And sooner or later, enterprises will move to the fact that all fixed assets and all production processes, and the price will still fall due to the attempts of competitors to conquer a larger market.

And this will already lead to functioning on the verge of the break-even point or below it. It will be possible to save the situation only by influence from outside the market.

Key Features of Perfect Competition

We can distinguish the following features that a perfectly competitive market should have:

- a large number of sellers or manufacturers of products. That is, all the demand that is on the market must be covered by more than one or several enterprises, as in the case of monopoly and oligopoly;

- products in such a market must be either homogeneous or interchangeable. It is understood that sellers or manufacturers produce such a product that can be completely replaced by products of other market participants;

- prices are set only by the market and depend on supply and demand. Neither the state, nor specific sellers or manufacturers should influence pricing. The price of goods should determine the cost of production, the level of demand, as well as supply;

– there should be no barriers to entry or entry into the market of perfect competition. Examples can be very different from the small business sector, where special requirements are not created and special licenses are not needed: ateliers, shoe repair services, etc.;

– there should be no other influences on the market from the outside.

Perfect competition is extremely rare.

In the real world, it is impossible to give examples of perfectly competitive firms, since there is simply no market that operates according to such rules. There are segments that are as close as possible to its conditions.

To find such examples, it is necessary to find those markets in which small business mainly operates. If any firm can enter the market where it operates, and it is also easy to exit it, then this is a sign of such competition.

Examples of Perfect and Imperfect Competition

If we talk about imperfect competition, then monopoly markets are its brightest representative. Enterprises that operate in such conditions have no incentive to develop and improve.

In addition, they produce such goods and provide such services that cannot be replaced by any other product. This explains the poorly controlled price level, which is established by non-market means. An example of such a market is a whole sector of the economy - the oil and gas industry, and Gazprom is a monopoly company.

An example of a perfectly competitive market is the provision of automotive repair services. There are a lot of various service stations and car repair shops both in the city and in other settlements. The type and amount of work performed is almost the same everywhere.

It is impossible in the legal field to artificially increase the prices of goods if there is perfect competition in the market. Examples confirming this statement, everyone saw in his life repeatedly in the ordinary market. If one seller of vegetables raised the price of tomatoes by 10 rubles, despite the fact that their quality is the same as that of competitors, then buyers will stop buying from him.

If, under a monopoly, a monopolist can influence the price by increasing or decreasing supply, then in this case such methods are not suitable.

Under perfect competition, it is impossible to raise the price on its own, as a monopolist can do.

Because of a large number competitors simply cannot raise the price, since all customers will simply switch to purchasing the corresponding goods from other enterprises. Thus, an enterprise may lose its market share, which will entail irreversible consequences.

In addition, in such markets there is a decrease in the prices of goods by individual sellers. This happens in an attempt to "win" new market shares to increase revenue levels.

And in order to reduce prices, it is necessary to spend less raw materials and other resources on the production of one unit of output. Such changes are only possible through the introduction of new technologies, production optimization and other processes that can reduce the cost of doing business.

In Russia, markets that are close to perfect competition are not developing fast enough

If we talk about the domestic market, perfect competition in Russia, examples of which are found in almost all areas of small business, is developing at an average pace, but it could be better.

The main problem is the weak support of the state, since so far many laws are focused on supporting large manufacturers, which are often monopolists.

In the meantime, the small business sector remains without much attention and the necessary funding.

Perfect competition, examples of which are given above, is an ideal form of competition on the part of understanding the criteria for pricing, supply and demand. To date, no economy in the world can find a market that would meet all the requirements that must be observed under perfect competition.

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Introduction

Market pricing according to the laws of supply and demand, the formation of equilibrium market prices on this basis underlie the self-regulation of the market economy, its ability to solve economic problems more efficiently than other systems.

But there are no countries where the state would not interfere in the market in any way. The problem of studying state intervention will be relevant as long as the market itself exists.

The purpose of this term paper is to determine the role of the state in the market, the effectiveness of the state pricing policy.

To achieve the goal, the following tasks were set:

1. consider the market of perfect competition and the forms of price control of the state, their consequences;

2. consider the monopolistic market and determine the place of the state in this market;

3. compare the effects of government regulation of both markets and determine whether there are patterns in government policy regarding market structure.

Features of state regulation of prices in the market of perfect competition

Market structure

The market is an objective phenomenon of the economy, known to any person, and yet the market is still difficult to give an exhaustive definition. The market is one of the most common categories in economic theory and business practice. The market as an economic category is a set of specific economic relations and ties between buyers and sellers, as well as resellers regarding the movement of goods and money, reflecting the economic interests of the subjects of market relations and ensuring the exchange of labor products. The market is the mechanism by which buyers and sellers interact to set the prices and quantities of goods and services. The market today is considered as a type of economic relations between the subjects of economic relations.

The structure of the market is the internal structure, location, order of individual elements of the market, their specific gravity in the total volume of the market; these are the flow conditions. market competition.

A necessary and most important element of the market is competition, which has a different nature and forms on various markets and in various market situations. Competition - economic rivalry for the right to obtain a larger share of a certain type of limited resources. The virtue of competition is that it makes the distribution of scarce resources dependent on the economic parameters of the competitors.

According to the conditions of the course of market competition, there are perfect and imperfect competition.

There are three main types of imperfect competition: monopolistic competition, oligopoly, monopoly.

Features of a perfectly competitive market

In economic theory, perfect competition is a form of market organization in which all types of rivalry are excluded both between sellers and between buyers. Thus, the theoretical concept of perfect competition is in fact a negation of the usual for business practices and everyday life understanding of competition as a sharp rivalry of economic agents. Perfect competition is perfect in the sense that with such an organization of the market, each enterprise will be able to sell as many products as it wants at a given market price, and neither an individual seller nor an individual buyer can influence the level of the market price.

We say that perfect competition prevails if the following conditions are satisfied in the market:

1. The market is made up of many competing sellers, each selling a standardized product. many buyers.

2. Each firm has a very small share of total output sold on the market, less than 1% of total sales for any given time period.

3. Neither firm sees competitors as a threat to its market share of sales. Firms are therefore not interested production solutions its competitors .

4. Price information , technology and probable profit is freely available, and there is an opportunity to quickly respond to changing market conditions through the movement of applied resources.

5. Market entry and exit from it for sellers of standardized goods is free . This means that there are no restrictions preventing the firm from selling the product on the market, and there are no difficulties with the termination of operations in the market.

A perfectly competitive market is a market where the conditions for perfect competition are satisfied. In a perfectly competitive market, buyers of standard products or services do not care which firm to choose. For example, the market for eggs is very likely to be competitive. Many vendors sell eggs every day. None of the farmers account for more than 1% of the daily market sales. The first two of the above conditions for a perfectly competitive market ensure that no seller can influence the price of a product. The individual seller has a very small share of the total output, he is not able to change the supply in the market so that the price changes. Accordingly, sellers in a perfectly competitive market accept prices as set from outside, that is, they are "price-takers".

This means that the price at which each firm sells its output is determined by forces beyond the control of the firm. It is about the conditions of supply and demand in the market as a whole. Demand conditions under perfect competition both for an individual firm and for the entire market are shown in Figure 1.

Let us assume that the equilibrium price P E equals $0.4 per pound of broiler, then the equilibrium quantity Q E is 2 billion pounds annually. Part (b) of the figure shows what the market looks like from the point of view of the individual producer. The range of possible output options from the point of view of the firm has a dimension expressed not in billions of pounds, but in thousands. This range is so small that whether a firm produces 10,000 pounds, 20,000 pounds, or 40,000 pounds of chicken per year has little to no effect on aggregate demand. The change per £10,000 is so small that it can't be seen on the much larger market demand and supply charts. As for a single firm, it is obvious that the demand curve for its products is perfectly elastic (horizontal) at the market price, although, from the point of view of the market as a whole, the demand curve has a quite usual negative slope.

Entry into and exit from a perfectly competitive market is open to all firms without exception. Therefore, in the long run, the level of profitability becomes the regulator of the resources used in the industry.

If the level of market prices established in the industry is above the minimum of average costs, then the possibility of obtaining economic profits will serve as a kind of incentive for new firms to enter the industry. The absence of barriers on their way will lead to the fact that an increasing share of resources will be directed to the production of this type of goods.

And, conversely, economic losses will act as a disincentive, scaring off entrepreneurs and reducing the amount of resources used in the industry. After all, if a firm intends to leave the industry, then in conditions of perfect competition it will not encounter any barriers in its path. That is, the company in this case will not incur any sunk costs and will find a new use for its assets or sell them without harm to itself. Therefore, it can really fulfill its desire to move resources to another industry.

Zero economic profit

The relationship between the level of profitability in a competitive industry and the size of the use of resources in it, and hence the volume of supply, predetermines break-even of firms operating in a competitive industry in the long run(or equivalently, their receipt zero economic profit). The mechanism of establishment of zero economic profit is shown in fig. 7.12.

Let in a competitive industry (Fig. 7.12 b) initially there is an equilibrium (point O), dictating a certain price level P0, at which the firm (Fig. 7.12 a) receives zero profit in the short run. Suppose further that the demand for the products of the industry suddenly increased. The industry demand curve in this situation will move to position , and the industry will establish a new short run equilibrium(equilibrium point, equilibrium supply, equilibrium price). For the firm, the new higher price level will be a source of economic profit (the price lies above the level of the average total costs of ATC).

Economic profits will attract new producers to the industry. The consequence of this will be the formation of a new supply curve, shifted compared to the original in the direction of large volumes of production. A new, slightly lower price level will also be established. If economic profits are maintained at this price level (as in our diagram), then the influx of new firms will continue, and the supply curve will shift further to the right. In parallel with the influx of new firms into the industry, the supply in the industry will also increase under the influence of the expansion of production capacities by firms already operating in the industry. Gradually, all of them will reach the level of the minimum average long-term costs (LATC), i.e. reached the optimal size of the enterprise (see "Costs").


Rice. 7.12.

It is obvious that both of these processes will last until the supply curve takes the position , which means zero profits for firms. And only then will the influx of new firms dry up - there will no longer be an incentive for it.

The same chain of consequences (but in the opposite direction) unfolds in the event of economic losses:

  1. reduction in demand.
  2. price drop (short-term).
  3. emergence of economic losses at firms (short-term period).
  4. outflow of firms and resources from the industry.
  5. reduction of long-term market supply.
  6. price increase.
  7. break-even recovery (long-term).
  8. stopping the outflow of firms and resources from the industry.

Thus, perfect competition has a peculiar mechanism of self-regulation. Its essence lies in the fact that the industry responds flexibly to changes in demand. It attracts an amount of resources that increases or decreases the supply just enough to compensate for the change in demand. And on this basis, it ensures the long-term break-even of firms.

Long run equilibrium conditions

Summing up, we can say that the equilibrium established in the industry in the long run satisfies three conditions:

All three of these long-run equilibrium conditions can be summarized as follows:

Long run industry supply curve

If we connect all the points of possible long-term equilibrium, then a long-term supply line of a competitive industry () is formed.

Indeed, the equilibrium points O and in fig. 7.12 actually outline the position of the long-term supply curve. They show that, in the long run, a competitive industry can provide any amount of supply at the same price. Indeed, repeating the above chain of reasoning, it is easy to come to the following conclusion: no matter how demand changes, the supply will react in such a way that, in the end, the equilibrium point will again return to the level corresponding to the level of zero economic profit for firms operating in the industry.

So, general principle is that The long-run supply curve of a competitive industry is the line through the break-even points for each level of production. On fig. 7.13 shows different variants manifestations of this pattern.


Rice. 7.13.
Industries since fixed costs

In the specific example we have considered (see Fig. 7.12), such a line is a straight line parallel to the x-axis and corresponding to the absolute elasticity of the proposal. The latter, however, does not always take place, but only in the so-called industries with fixed costs. That is, in those cases when, while expanding the volume of its supply, the industry has the opportunity to purchase necessary resources at constant prices.

As a rule, this condition is met for industries that are relatively small relative to the scale of the entire economy. For example, the growth in the number of gas stations in Russia does not create tension in any of the resource markets that firms enter when building gas stations. Apart from inflation, the creation of reservoirs, the purchase of pumps, the hiring of personnel, etc. the construction of each additional station costs approximately the same amount (the differences can only be related to its size and design). Consequently, the break-even level at which the price of gas station services will freeze under the influence of competition will always be the same. We have depicted this situation in Fig. 7.13 a, combining on the same graph the long-term supply curve of the industry () and the cost curves of a typical firm (), corresponding to a given level of industry-wide production.

For a perfectly competitive market, this situation is quite typical. Recall stalls and shops of various profiles, workshops for the repair and manufacture of various goods, mini-bakeries, confectioneries, etc. All these types of businesses are small across the country, and their expansion is unlikely to affect the prices of purchased resources.

Industries with rising costs

This is not the case if resources become more and more expensive for each new firm entering the market. This usually happens if the growing demand of an industry for a certain resource is so significant that it creates a shortage in the economy as a whole.

This situation is typical for any industries with rising costs where the prices of factors used in production rise as the industry expands and the demand for those factors increases.

With an increase in long-term costs, newcomers to the industry will reach the level of zero economic profit at a higher price than old-timers. If we turn again to Fig. 7.12, then we can say that the influx of new firms into the industry will not bring supply to the level of the curve , but will stop earlier, say, in a position at which firms will find themselves in a new (taking into account the rise in price of resources) break-even position. It is clear that the long-term supply curve () will pass in this case not along a horizontal path, but along an ascending curve.

In such situations, with the expansion of production, the increase in costs can affect even small industries. After all, unique resources are always available in very limited sizes. Yes, in history Russia XIX in. similar processes affected, say, the famous malachite crafts (workshops for artistic processing stone), when the fashion for malachite and the growth in output caused by it collided with the depletion of the reserves of this mineral in the Urals. Once a cheap ("cheerful") stone quickly became expensive, even the kings did not neglect crafts from it, which is perfectly described by P. Bazhov.

Industries with falling costs

Finally, there are industries in which the prices of factors of production decrease as production expands. The minimum average cost in this case also decreases in the long run. And the growth of industry demand in the long run causes a simultaneous increase in supply and a decrease in the equilibrium price.

The long-term supply curve of an industry with falling costs has a negative slope (Fig. 7.13 c).

Such a super-favorable development of events is usually associated with economies of scale in the production of suppliers of resources (raw materials, equipment, etc.) for this industry. For example, it is likely that as the population grows and becomes stronger farms in Russia, their costs will experience a long-term reduction. The fact is that machines and equipment adapted for farmers are now produced literally by the piece, and therefore very expensive. With the appearance of mass demand for them, production will be put on stream and the cost will drop sharply. Farmers, having felt the cost reduction (in Fig. 7.13 from to ), will themselves begin to reduce the price of their products (curve falling).

2. State regulation .................................................................. .... 3

a.Reasons for government regulation...................... 3

b.Tasks of state regulation.............................. 4

c.Types of state regulation of markets ....... 4

d.State regulation in Russia.............................. 5

3. A little bit.............................................. ............................... 6

4. Bibliography................................................. ................................. 7

Let's start from the beginning

studying different kinds markets, we divide them all, first, into two types: markets of perfect and imperfect competition, depending on the number of economic agents in the market, product differentiation, the share of an individual seller in the market, the presence or absence of entry and exit barriers in the market, the availability of information, the degree market power of sellers. But markets of perfect competition in life are quite rare (for example, the market for agricultural products or the market for valuable papers), but with imperfect competition (by which we mean monopolistic competition, oligopoly and monopoly), we meet much more often. And since sellers in such markets have market power, the prices of their goods are higher than in a perfectly competitive market. This means that state intervention and price regulation often serves the interests of buyers, except in cases where the state, for example, by supporting temporarily idle giant factories, artificially inflates prices for their products.

Since monopolistic competition is pretty close to perfect, we will turn our attention to the state regulation of oligopolies and monopolies. We will try to understand the causes and objectives of regulating their activities, consider the situation that has developed in Russia in the last decade.

Reasons for government regulation

Despite the technical efficiency of the concentration of production in the hands of one enterprise, a monopolist or oligopolist often abuses his position. This manifests itself in overstating costs or inflating profits. And unreasonably high prices negate the social effect of economies of scale.

There are two main options for the economic behavior of the seller of goods in a non-competitive market, allowing you to make a profit that is significantly greater than in the case of his actions in a competitive market.

1. The desire to extract economic profit and setting prices above marginal costs, in the case of establishing a single price for a product for different groups of consumers, leads to a reduction in production relative to the competitive level and the emergence of DWL ("dead weight losses"). In a competitive market, the price and production volumes are set at the level when the quantity demanded is equal to the quantity supplied, and we get the equilibrium price Pc at the production volume Qc. If the market is controlled by a monopoly, the latter will determine the volume of production based on the equality of the curves of marginal revenue and marginal cost (MR=MC). Then we get the level of production equal to Q* (Q* PC)

2. In an effort to minimize irretrievable losses and capture most of the consumer surplus, monopolists and oligopolists resort to price discrimination - assigning different prices for the same product to different buyers depending on demand. To do this, the seller must have the necessary mass of marketable products D(c) that can satisfy the demand of a group of buyers with low solvency. And also this product should be unsuitable for long-term storage and accumulation, because otherwise a buyer appears who purchases the product at a low price with the aim of subsequent resale at a high one.

The most important condition is the possibility of separating consumer groups according to their ability to pay by charging different fees for the same product. The process of price discrimination is one of the forms of redistribution of funds, therefore price discrimination is prohibited by the antitrust laws of most developed countries.

Since the prices of monopoly products are high, it happens that enterprises sell their goods and services on credit. And this always translates into the desire of consumers to delay payments for consumed products. Thus, the consequences of monopoly behavior are not only in reducing production volumes, but also in creating the preconditions for the development of a non-payment crisis. The spread of non-payments is the result of price discrimination economic structures that have influence on the market and are not constrained in their activities by the regulatory influence of the state.

Also, the need to regulate prices in natural monopolies and, to a lesser extent, in oligopolies, is also due to the fact that the mechanism of influencing the economy through a system of regulated prices is an effective addition to fiscal macroeconomic policy.

Tasks of state regulation

We looked at why the state needs to regulate the activities of oligopolies and monopolies. But what can the state achieve by "managing" firms operating in an imperfectly competitive market? By regulating the activities of oligopolies and monopolies, the state can create a financial situation that is attractive to creditors and investors, offer buyers more or less affordable prices for monopoly products; it is possible to develop a new tariff grid based on the principles of fair and efficient allocation of costs to tariffs for various types of consumers. Also, the state can stimulate monopoly enterprises to reduce costs and excessive employment, improve the quality of service, increase the efficiency of investments, etc.; can use the possibilities of price regulation mechanisms when pursuing a stabilizing macroeconomic policy, can manage the development of the economy in the regions. For example, if we formulate regional problems that can be solved with the help of tariffs for electricity and thermal energy, then they are as follows:

Alignment or differentiation of tariffs by subjects Russian Federation in order to ensure their uniform development;

Management of modes of electricity and heat consumption;

Stabilization of the economic situation of energy facilities and their associations with an unplanned reduction in energy demand in advance;

Stimulation of an increase or decrease in demand for energy by individual consumers or groups of consumers and, accordingly, the regulation of their economic activity.

As we can see, the range of problems solved with the help of state regulation of imperfect competition markets is very wide, which means that this type of state activity is important for the normal functioning of our society.

Types of state regulation of markets

The state can regulate markets in two main ways. The first is the imposition of taxes on production. The second is the use of fixed prices (more often price ceilings). But both of these methods are not always efficient from an economic point of view, and sometimes generally lead to the opposite of the desired result. Let's take a closer look at both of these options.

Let's start with taxes. This method is not economically viable, since most of the time the tax burden falls on the buyers. For example, consider the introduction of a commodity tax, which is officially paid by the seller.

Initially, equilibrium was at the point where price was P* and quantity was Q*. After imposing a tax of T for each unit of a good, the supply curve shifted up by T units.

Consequently, the new equilibrium began to be characterized by three quantities: Q’, P’, P”. And the total amount of tax received by the state budget will be equal to the area of ​​the rectangle P’ABP.” It is worth noting that part of the "tax burden" rests with the buyer. It turns out that the introduction of a commodity tax causes a reduction in the equilibrium size of the market, and also leads to an increase in the price actually paid by buyers and a decrease in the price actually received by sellers.

In markets of imperfect competition, the state, when setting a price ceiling, usually sets a price below the equilibrium price. In this case, we get a situation of shortage of goods, the difference between the available and required amount of goods the state can cover by paying extra to producers from tax revenues (which is what happens in the Moscow Metro).

Another situation is also possible. Let the government set a price ceiling below the equilibrium price, and producers have an illegal opportunity to sell their goods at a higher price on the black market (in case of exposure, sanctions apply only to sellers).

Then the supply line takes position S'. The difference P”-P’ is compensation for the risk of exposure. The vertical difference S'-S determines the severity of sanctions for violation of price discipline. As a result, all goods go to the black market, and its price turns out to be even higher than the equilibrium price (before state intervention). As we can see, these two methods of regulating markets of imperfect competition are not ideal, but nevertheless, some results can be achieved with their help.

A perfectly competitive market is characterized by the following features:

Firms produce the same, so that consumers do not care which manufacturer to buy it from. All products in the industry are perfect substitutes, and the cross-price elasticity of demand for any pair of firms tends to infinity:

This means that any arbitrarily small increase in the price of one producer above the market level leads to a reduction in demand for his products to zero. Thus, the difference in prices may be the only reason for preferring one or another firm. No non-price competition.

The number of economic entities in the market is unlimited, and their share is so small that the decisions of an individual firm (individual consumer) to change the volume of its sales (purchases) do not affect the market price product. This, of course, assumes that there is no collusion between sellers or buyers to obtain monopoly power On the market. The market price is the result of the combined actions of all buyers and sellers.

Freedom to enter and exit the market. There are no restrictions and barriers - there are no patents or licenses restricting activity in this industry, significant initial investments are not required, the positive effect of scale of production is extremely small and does not prevent new firms from entering the industry, there is no government intervention in the supply and demand mechanism (subsidies , tax incentives, quotas, social programs, etc.). Freedom of entry and exit absolute mobility of all resources, freedom of their movement territorially and from one type of activity to another.

Perfect Knowledge all market participants. All decisions are made in certainty. This means that all firms know their income and cost functions, the prices of all resources and all possible technologies, and all consumers have complete information about the prices of all firms. It is assumed that information is distributed instantly and free of charge.

These characteristics are so strict that there are practically no real markets that would fully satisfy them.

However, the perfect competition model:

  • allows you to explore markets in which a large number of small firms sell homogeneous products, i.e. markets similar in terms of conditions to this model;
  • clarifies the conditions for profit maximization;
  • is the standard for evaluating the performance of the real economy.

Short-run equilibrium of a firm under perfect competition

Demand for a perfect competitor's product

Under perfect competition, the prevailing market price is established by the interaction of market demand and market supply, as shown in Fig. 1 and defines the horizontal demand curve and average income (AR) for each individual firm.

Rice. 1. The demand curve for the products of a competitor

Due to the homogeneity of products and the presence of a large number of perfect substitutes, no firm can sell its product at a price even slightly higher than the equilibrium price, Pe. On the other hand, an individual firm is very small compared to the aggregate market, and it can sell all its output at the price Pe, i.e. she has no need to sell the commodity at a price below Re. Thus, all firms sell their products at the market price Pe, determined by market demand and supply.

Income of a firm that is a perfect competitor

The horizontal demand curve for the products of an individual firm and the single market price (Pe=const) predetermine the shape of the income curves under perfect competition.

1. Total income () - the total amount of income received by the company from the sale of all its products,

presented on the chart linear function, which has a positive slope and originates at the origin, since any sold unit of output increases the volume by an amount equal to the market price!!Re??.

2. Average income () - income from the sale of a unit of production,

is determined by the equilibrium market price!!Re??, and the curve coincides with the firm's demand curve. A-priory

3. Marginal income () - additional income from the sale of one additional unit of output,

Marginal revenue is also determined by the current market price for any amount of output.

A-priory

All income functions are shown in Fig. 2.

Rice. 2. Competitor's income

Determination of the optimal output volume

Under perfect competition, the current price is set by the market, and an individual firm cannot influence it, since it is price taker. In these conditions the only way increasing profits is to regulate the volume of output.

Based on the current market and technological conditions, the firm determines optimal output volume, i.e. the volume of output that provides the firm profit maximization(or minimization if profit is not possible).

There are two interrelated methods for determining the optimum point:

1. The method of total costs - total income.

The firm's total profit is maximized at the level of output where the difference between and is as large as possible.

n=TR-TC=max

Rice. 3. Determination of the point of optimal production

On fig. 3, the optimizing volume is at the point where the tangent to the TC curve has the same slope as the TR curve. The profit function is found by subtracting TC from TR for each output. The peak of the total profit curve (p) shows the volume of output at which profit is maximized in the short run.

From the analysis of the function of total profit, it follows that total profit reaches its maximum at the volume of production at which its derivative is equal to zero, or

dp/dQ=(p)`= 0.

The derivative of the total profit function has a strictly defined economic sense is the marginal profit.

marginal profit ( MP) shows the increase in total profit with a change in output per unit.

  • If Mn>0, then the total profit function grows, and additional production can increase the total profit.
  • If Mn<0, то функция совокупной прибыли уменьшается, и дополнительный выпуск сократит совокупную прибыль.
  • And, finally, if Мп=0, then the value of the total profit is maximum.

From the first profit maximization condition ( MP=0) the second method follows.

2. The method of marginal cost - marginal income.

  • Мп=(п)`=dп/dQ,
  • (n)`=dTR/dQ-dTC/dQ.

And since dTR/dQ=MR, a dTC/dQ=MC, then total profit reaches its maximum value at such a volume of output at which marginal cost equals marginal revenue:

If marginal cost is greater than marginal revenue (MC>MR), then the company can increase profits by reducing production. If marginal cost is less than marginal revenue (MC<МR), то прибыль может быть увеличена за счет расширения производства, и лишь при МС=МR прибыль достигает своего максимального значения, т.е. устанавливается равновесие.

This equality valid for any market structures, however, in conditions of perfect competition, it is somewhat modified.

Since the market price is identical to the average and marginal revenues of a firm that is a perfect competitor (РAR=MR), then the equality of marginal costs and marginal revenues is transformed into the equality of marginal costs and prices:

Example 1. Finding the optimal volume of output in conditions of perfect competition.

The firm operates under perfect competition. Current market price Р=20 c.u. The total cost function has the form TC=75+17Q+4Q2.

It is required to determine the optimal output volume.

Solution (1 way):

To find the optimal volume, we calculate MC and MR, and equate them to each other.

  • 1. MR=P*=20.
  • 2. MS=(TC)`=17+8Q.
  • 3.MC=MR.
  • 20=17+8Q.
  • 8Q=3.
  • Q=3/8.

Thus, the optimal volume is Q*=3/8.

Solution (2 way):

The optimal volume can also be found by equating the marginal profit to zero.

  • 1. Find the total income: TR=P*Q=20Q
  • 2. Find the function of total profit:
  • n=TR-TC,
  • n=20Q-(75+17Q+4Q2)=3Q-4Q2-75.
  • 3. We define the marginal profit function:
  • Mn=(n)`=3-8Q,
  • and then equate Mn to zero.
  • 3-8Q=0;
  • Q=3/8.

Solving this equation, we got the same result.

Short-term benefit condition

The total profit of the enterprise can be estimated in two ways:

  • P=TR-TC;
  • P=(P-ATS)Q.

If we divide the second equality by Q, then we get the expression

characterizing the average profit, or profit per unit of output.

It follows that a firm's profit (or loss) in the short run depends on the ratio of its average total cost (ATC) at the point of optimal production Q* and the current market price (at which the firm, a perfect competitor, is forced to trade).

The following options are possible:

if P*>ATC, then the firm has a positive short-term economic profit;

Positive economic profit

In the figure, total profit corresponds to the area of ​​the shaded rectangle, and average profit (ie profit per unit of output) is determined by the vertical distance between P and ATC. It is important to note that at the optimum point Q*, when MC=MR, and the total profit reaches its maximum value, n=max, the average profit is not maximum, since it is determined not by the ratio of MC and MR, but by the ratio of P and ATC.

if R*<АТС, то фирма имеет в краткосрочном периоде отрицательную экономическую прибыль (убытки);

Negative economic profit (loss)

if P*=ATC, then economic profit is zero, production is breakeven, and the firm earns only normal profit.

Zero economic profit

Termination Condition

In conditions when the current market price does not bring positive economic profit in the short term, the firm faces a choice:

  • or continue unprofitable production,
  • or temporarily suspend its production, but incur losses in the amount of fixed costs ( FC) production.

The firm makes a decision on this issue based on the ratio of its average variable cost (AVC) and market price.

When a firm decides to close, its total earnings ( TR) fall to zero, and the resulting losses become equal to its total fixed costs. Therefore, until price is greater than average variable cost

P>AVC,

firm production should continue. In this case, the income received will cover all the variables and at least part of the fixed costs, i.e. losses will be less than at closing.

If price equals average variable cost

then from the point of view of minimizing losses to the firm indifferent, continue or stop its production. However, most likely the company will continue its activities in order not to lose its customers and keep the jobs of employees. At the same time, its losses will not be higher than at closing.

And finally, if prices are less than average variable costs the firm should cease operations. In this case, she will be able to avoid unnecessary losses.

Production termination condition

Let us prove the validity of these arguments.

A-priory, n=TR-TS. If a firm maximizes its profit by producing the nth number of products, then this profit ( n) must be greater than or equal to the profit of the firm under the conditions of closing the enterprise ( on), because otherwise the entrepreneur will immediately close his enterprise.

In other words,

Thus, the firm will continue to operate only as long as the market price is greater than or equal to its average variable cost. Only under these conditions, the firm minimizes its losses in the short run, continuing to operate.

Intermediate conclusions for this section:

Equality MS=MR, as well as the equality MP=0 show the optimal output volume (i.e., the volume that maximizes profits and minimizes losses for the firm).

The ratio between the price ( R) and average total cost ( ATS) shows the amount of profit or loss per unit of output while continuing production.

The ratio between the price ( R) and average variable costs ( AVC) determines whether or not to continue activities in the event of unprofitable production.

Competitor's short run supply curve

A-priory, supply curve reflects the supply function and shows the amount of goods and services that producers are willing to supply to the market at given prices, at a given time and place.

To determine the short-run supply curve of a perfectly competitive firm,

Competitor's supply curve

Let's assume that the market price is Ro, and the average and marginal cost curves look like those in Fig. 4.8.

Insofar as Ro(closing points), then the firm's supply is zero. If the market price rises to a higher level, then the equilibrium output will be determined by the relation MC and MR. The very point of the supply curve ( Q;P) will lie on the marginal cost curve.

By consistently raising the market price and connecting the resulting points, we get a short-run supply curve. As can be seen from the presented Fig. 4.8, for a firm-perfect competitor, the short-run supply curve coincides with its marginal cost curve ( MS) above the minimum level of average variable costs ( AVC). At lower than min AVC level of market prices, the supply curve coincides with the price axis.

Example 2: Defining a sentence function

It is known that a firm-perfect competitor has total (TC), total variable (TVC) costs represented by the following equations:

  • TS=10+6 Q-2 Q 2 +(1/3) Q 3 , where TFC=10;
  • TVC=6 Q-2 Q 2 +(1/3) Q 3 .

Determine the firm's supply function under perfect competition.

1. Find MS:

MS=(TC)`=(VC)`=6-4Q+Q 2 =2+(Q-2) 2 .

2. Equate MC to the market price (condition market equilibrium with perfect competition MC=MR=P*) and we get:

2+(Q-2) 2 = P or

Q=2(P-2) 1/2 , if R2.

However, we know from the preceding material that the supply quantity Q=0 for P

Q=S(P) at Pmin AVC.

3. Determine the volume at which the average variable costs are minimal:

  • min AVC=(TVC)/ Q=6-2 Q+(1/3) Q 2 ;
  • (AVC)`= dAVC/ dQ=0;
  • -2+(2/3) Q=0;
  • Q=3,

those. average variable costs reach their minimum at a given volume.

4. Determine what min AVC equals by substituting Q=3 into the min AVC equation.

  • min AVC=6-2(3)+(1/3)(3) 2 =3.

5. Thus, the firm's supply function will be:

  • Q=2+(P-2) 1/2 ,if P3;
  • Q=0 if R<3.

Long-run market equilibrium under perfect competition

Long term

So far, we have considered the short-term period, which involves:

  • the existence of a constant number of firms in the industry;
  • enterprises have a certain amount of permanent resources.

In the long term:

  • all resources are variable, which means that the company operating in the market can change the size of production, introduce new technology, modify products;
  • a change in the number of enterprises in the industry (if the profit received by the firm is below normal and negative forecasts for the future prevail, the enterprise may close and leave the market, and vice versa, if the profit in the industry is high enough, an influx of new companies is possible).

Main assumptions of the analysis

To simplify the analysis, suppose that the industry consists of n typical enterprises with same cost structure, and that the change in the output of incumbent firms or the change in their number do not affect resource prices(we will remove this assumption later).

Let the market price P1 determined by the interaction of market demand ( D1) and market supply ( S1). The cost structure of a typical firm in the short run has the form of curves SATC1 and SMC1(Fig. 4.9).

Rice. 9. Long run equilibrium of a perfectly competitive industry

The mechanism of formation of long-term equilibrium

Under these conditions, the firm's optimal output in the short run is q1 units. The production of this volume provides the company positive economic profit, since the market price (P1) exceeds the firm's average short-term cost (SATC1).

Availability short-term positive profit leads to two interrelated processes:

  • on the one hand, the company already operating in the industry seeks to expand your production and receive economies of scale in the long run (according to the LATC curve);
  • on the other hand, external firms will begin to show interest in penetration into the industry(depending on the value of economic profit, the penetration process will proceed at different speeds).

The emergence of new firms in the industry and the expansion of the activities of old ones shifts the market supply curve to the right to the position S2(as shown in Fig. 9). The market price falls from P1 before R2, and the equilibrium volume of industry output will increase from Q1 before Q2. Under these conditions, the economic profit of a typical firm falls to zero ( P=SATC) and the process of attracting new companies to the industry is slowing down.

If for some reason (for example, the extreme attractiveness of initial profits and market prospects) a typical firm expands its production to the level q3, then the industry supply curve will shift even more to the right to the position S3, and the equilibrium price falls to the level P3, lower than min SATC. This will mean that firms will no longer be able to extract even normal profits and a gradual outflow of companies in more profitable areas of activity (as a rule, the least efficient ones leave).

The rest of the enterprises will try to reduce their costs by optimizing the size (i.e. by some reduction in the scale of production to q2) to a level at which SATC=LATC, and it is possible to obtain a normal profit.

Shifting the industry supply curve to the level Q2 cause the market price to rise to R2(equal to the minimum long-run average cost, P=min LAC). At a given price level, the typical firm earns no economic profit ( economic profit is zero, n=0), and is only able to extract normal profit. Consequently, the motivation for new firms to enter the industry disappears and a long-term equilibrium is established in the industry.

Consider what happens if the equilibrium in the industry is disturbed.

Let the market price ( R) has settled below the average long run cost of a typical firm, i.e. P. Under these conditions, the firm begins to incur losses. There is an outflow of firms from the industry, a shift in market supply to the left, and while maintaining market demand unchanged, the market price rises to the equilibrium level.

If the market price ( R) is set above the average long run costs of a typical firm, i.e. P>LATC, then the firm begins to earn a positive economic profit. New firms enter the industry, market supply shifts to the right, and with market demand unchanged, price falls to the equilibrium level.

Thus, the process of entry and exit of firms will continue until a long-term equilibrium is established. It should be noted that in practice, the regulatory forces of the market work better for expansion than for contraction. Economic profit and freedom to enter the market actively stimulate an increase in the volume of industry production. On the contrary, the process of squeezing firms out of an over-expanded and unprofitable industry takes time and is extremely painful for participating firms.

Basic conditions for long-run equilibrium

  • Operating firms the best way use the resources at their disposal. This means that each firm in the industry maximizes its profit in the short run by producing the optimal output at which MR=SMC, or since the market price is identical to marginal revenue, P=SMC.
  • There are no incentives for other firms to enter the industry. The market forces of supply and demand are so strong that firms are unable to extract more than is necessary to keep them in the industry. those. economic profit is zero. This means that P=SATC.
  • Firms in an industry cannot, in the long run, reduce total average costs and profit by scaling up production. This means that in order to earn a normal profit, a typical firm must produce a volume of output corresponding to a minimum of average long-term total costs, i.e. P=SATC=LATC.

In a long-run equilibrium, consumers pay the minimum economically possible price, i.e. the price required to cover all production costs.

Market supply in the long run

The individual firm's long-run supply curve coincides with the rising leg of the LMC above min LATC. However, the market (industry) supply curve in the long run (as opposed to the short run) cannot be obtained by horizontally summing the supply curves of individual firms, since the number of these firms varies. The shape of the market supply curve in the long run is determined by how resource prices change in the industry.

At the beginning of the section, we introduced the assumption that changes in industry output do not affect resource prices. In practice, there are three types of industries:

  • with fixed costs
  • with increasing costs
  • with decreasing costs.
Industries with fixed costs

The market price will rise to P2. The optimal output of an individual firm will be equal to Q2. Under these conditions, all firms will be able to earn economic profits by inducing other firms to enter the industry. The industry short-run supply curve shifts to the right from S1 to S2. The entry of new firms into the industry and the expansion of industry output will not affect resource prices. The reason for this may lie in the abundance of resources, so that new firms will not be able to influence the prices of resources and increase the costs of existing firms. As a result, the typical firm's LATC curve will remain the same.

Rebalancing is achieved according to the following scheme: the entry of new firms into the industry causes the price to fall to P1; profits are gradually reduced to the level of normal profit. Thus, industry output increases (or decreases) following a change in market demand, but the supply price in the long run remains unchanged.

This means that a fixed cost industry is a horizontal line.

Industries with rising costs

If an increase in industry volume causes an increase in resource prices, then we are dealing with the second type of industry. The long-term equilibrium of such an industry is shown in Fig. 4.9 b.

A higher price allows firms to earn economic profits, which attracts new firms to the industry. The expansion of aggregate production necessitates an ever wider use of resources. As a result of competition between firms, resource prices increase, and as a result, the costs of all firms (both existing and new ones) in the industry increase. Graphically, this means an upward shift in the marginal and average cost curves of the typical firm from SMC1 to SMC2, from SATC1 to SATC2. The short run firm's supply curve also shifts to the right. The adjustment process will continue until economic profits dry up. On fig. 4.9 the new equilibrium point will be the price P2 at the intersection of the demand curves D2 and supply S2. At this price, the typical firm chooses the output at which

P2=MR2=SATC2=SMC2=LATC2.

The long run supply curve is obtained by connecting short run equilibrium points and has a positive slope.

Industries with diminishing costs

Analysis of the long-term equilibrium of industries with decreasing costs is carried out according to a similar scheme. Curves D1,S1 - the initial curves of market demand and supply in the short term. P1 is the initial equilibrium price. As before, each firm reaches equilibrium at the point q1, where the demand curve - AR-MR touches min SATC and min LATC. In the long run, market demand increases, i.e. the demand curve shifts to the right from D1 to D2. The market price rises to a level that allows firms to earn economic profits. New companies begin to flow into the industry, and the market supply curve shifts to the right. The expansion of production leads to lower prices for resources.

This is a rather rare situation in practice. An example is a young industry emerging in a relatively undeveloped area where the resource market is poorly organized, marketing is primitive, and the transportation system is poorly functioning. An increase in the number of firms can increase the overall efficiency of production, stimulate the development of transport and marketing systems, and reduce the overall costs of firms.

External savings

Due to the fact that an individual firm cannot control such processes, this kind of cost reduction is called foreign economy(English external economies). It is caused solely by the growth of the industry and by forces beyond the control of the individual firm. External economies should be distinguished from the already known internal economies of scale, achieved by increasing the scale of the firm and completely under its control.

Taking into account the factor of external savings, the function of the total costs of an individual firm can be written as follows:

TCi=f(qi,Q),

where qi- the volume of output of an individual firm;

Q is the output of the entire industry.

In industries with fixed costs, there are no external economies; the cost curves of individual firms do not depend on the output of the industry. In industries with increasing costs, there is a negative external economy (English external diseconomies), the cost curves of individual firms shift upwards with an increase in output. Finally, in industries with decreasing costs, there is a positive external economy that offsets internal uneconomics due to diminishing returns to scale, so that the cost curves of individual firms shift downward as output increases.

Most economists agree that in the absence of technological progress, industries with increasing costs are most typical. Industries with diminishing costs are the least common. As industries with decreasing and fixed costs grow and mature, they are more likely to become industries with increasing costs. On the contrary, technological progress can neutralize the rise in resource prices and even cause them to fall, resulting in a downward long-run supply curve. An example of an industry in which costs are reduced as a result of scientific and technical progress is the production of telephone services.