VARIABLE COSTS

VARIABLE COSTS

(variable cost) Variable costs are those costs that change with the level of output. They are opposed to the fixed costs that are necessary to make output possible at all; they are independent of the release level. Keep in mind that this is a fundamental difference. The price of a resource used may be stable for years, but it is still a variable cost if the amount of that resource used depends on the output. The price of other resources may vary, but they will still be fixed costs if the amount of resources used does not depend on the level of output.

Economy. Dictionary. - M.: "INFRA-M", Publishing house "Ves Mir". J. Black. General editorial staff: Doctor of Economics Osadchaya I.M.. 2000 .

Economic dictionary . 2000 .

See what "VARIABLE COSTS" is in other dictionaries:

- (variable costs) See: overhead costs. Business. Dictionary. Moscow: INFRA M, Ves Mir Publishing House. Graham Bets, Barry Brindley, S. Williams et al. Osadchaya I.M.. 1998 ... Glossary of business terms

variable costs- VARIABLE COSTS Costs, the value of which varies depending on the change in the volume of production. Variable costs include the costs of variable resources (see Variable factor inputs). Let's look at charts. AT short term… … Dictionary-reference book on economics

variable costs- (costs) Costs that are directly proportional to the volume of production. If output is zero, variable costs are also zero... Investment dictionary

variable costs- Costs that are directly dependent on the volume of production, such as direct costs for materials or labor required to create a finished product. See also fixed cost... Financial and investment explanatory dictionary

variable costs- costs, the size of which depends on the volume of production of the firm ... Economics: glossary

Variable costs are types of expenses, the value of which changes in proportion to changes in production volumes. Contrasted with fixed costs, which add up to total costs. The main sign by which you can determine ... ... Wikipedia

variable costs- monetary and opportunity costs, which change in response to changes in the volume of output. Together with fixed costs, they form total costs. To P.i. include the cost of wages, fuel, materials, etc. ... Dictionary of Economic Theory

variable costs- see variable capital ... Dictionary of many expressions

Costs that are directly related to the volume of production, varying depending on the volume, for example, the cost of materials, raw materials, semi-finished products, piecework wages of workers. Economic dictionary. 2010 ... Economic dictionary

Costs that are directly related to the volume of production, varying depending on the volume, for example, the cost of materials, raw materials, semi-finished products, piecework wages of workers. Terminological dictionary of banking and financial terms. ... ... Financial vocabulary

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10.11 Types of costs

When we considered the periods of production of a firm, we talked about the fact that in the short run the firm may not change all the factors of production used, while in the long run all factors are variable.

It is these differences in the ability to change the volume of resources with a change in the volume of production that led economists to break down all types of costs into two categories:

1. fixed costs;
2. variable costs.

fixed costs(FC, fixed cost) - these are those costs that cannot be changed in the short run, and therefore they remain the same with small changes in the volume of production of goods or services. Fixed costs include, for example, rent for premises, costs associated with the maintenance of equipment, repayment of previously received loans, as well as various administrative and other overhead costs. Let's say build new plant for oil refining within a month is impossible. So if next month oil company plans to produce 5% more gasoline, this is possible only at the existing production facilities and with the existing equipment. In this case, a 5% increase in output will not lead to an increase in the cost of equipment maintenance and maintenance. industrial premises. These costs will remain constant. Only the amounts of wages paid, as well as the costs of materials and electricity (variable costs) will change.

Schedule fixed costs is a horizontal line

Average fixed costs (AFC, average fixed cost) are fixed costs per unit of output.

variable costs(VC, variable cost) are those costs that can be changed in the short term, and therefore they grow (decrease) with any increase (decrease) in production volumes. This category includes costs for materials, energy, components, wages.

Variable costs show such dynamics from the volume of production: up to a certain point they increase at a killing pace, then they begin to increase at an increasing pace.

The variable cost schedule looks like this:

Average variable cost (AVC, average variable cost) is variable costs per unit of output.

The standard Average Variable Cost Chart looks like a parabola.

The sum of fixed costs and variable costs is total cost (TC, total cost)

TC=VC+FC

Average total cost (AC, average cost) is the total cost per unit of output.

Also, average total costs are equal to the sum of average fixed and average variables.

AC = AFC + AVC

AC graph looks like a parabola

A special place in economic analysis occupy marginal cost. Marginal cost is important because economic decisions usually involve marginal analysis of available alternatives.

Marginal cost (MC) is the incremental cost of producing an additional unit of output.

Since fixed costs do not affect the increment in total costs, marginal cost is also an increment in variable costs when an additional unit of output is produced.

As we have already said, formulas with a derivative in economic tasks are used when smooth functions are given, from which it is possible to calculate derivatives. When we are given separate points (discrete case), then we should use formulas with ratios of increments.

Schedule marginal cost is also a parabola.

Let's plot the marginal cost graph together with the graphs of average variables and average total costs:

In the above graph, you can see that AC always exceeds AVC because AC = AVC + AFC, but the distance between them gets smaller as Q increases (because AFC is a monotonically decreasing function).

You can also see on the chart that the MC chart crosses the AVC and AC charts at their lows. To substantiate why this is so, it suffices to recall the relationship between average and marginal values ​​already familiar to us (from the “Products” section): when the marginal value is below the average, then the average value decreases with an increase in volume. When the limit value is higher than the average value, the average value increases as the volume increases. Thus, when the limit value crosses the mean value from the bottom up, the mean value reaches a minimum.

Now let's try to correlate the graphs of the general, average, and limit values:

These graphs show the following patterns.

There are a large number of ways in which a company makes a profit, and the fact of cost is important. Costs are the real costs incurred by the company in its operation. If a company is unable to pay attention to the category of costs, then the situation may become unpredictable and profit margins may decrease.

Fixed production costs must be analyzed when constructing their classification, with which you can determine the idea of ​​their properties and main characteristics. The main classification of production costs includes fixed, variable, general costs.

Fixed costs of production

Fixed costs of production are an element of the break-even point model. They are costs regardless of the volume of output and are opposed to variable costs. The sum of fixed and variable costs represent the total costs of the enterprise. Fixed costs can be made up of several elements:

1. room rental,
2. deductions for depreciation,
3. management and administrative staff costs,
4. the cost of machines, machinery and equipment,
5. security of premises for production,
6. payment of interest on loans to banks.

Fixed costs are represented by the costs of enterprises, which are unchanged in short periods and do not depend on changes in production volumes. This type of cost must be paid even if the enterprise does not produce anything.

Average fixed costs

Average fixed costs can be obtained by calculating the ratio of fixed costs and output. So the average fixed cost is constant flow for the release of products. In sum, fixed costs do not depend on production volumes. For this reason, average fixed costs will tend to decrease as the number of products produced increases. This is due to the fact that with an increase in production volumes, the amount of fixed costs is distributed over a larger number of products.

Features of fixed costs

Fixed costs in the short run do not change with changes in output. Fixed costs are sometimes referred to as sunk costs or overheads. Fixed costs include the costs of maintaining buildings, space, and purchasing equipment. The fixed cost category is used in several formulas.

Thus, when determining total costs (TC), a combination of fixed and variable costs is needed. The total costs are calculated by the formula:

This type of cost increases with the increase in production volumes. There is also a formula for determining the total fixed costs, which are calculated by dividing the fixed costs by a certain volume of manufactured products. The formula looks like this:

Average fixed costs are used to calculate average total costs. Average total costs are found through the sum of average fixed and variable costs according to the formula:

Fixed costs in the short run

In the production of products, living and past labor has been expended. In this case, each enterprise seeks to obtain the greatest profit from its operation. In this case, each enterprise can go in two ways - to sell products more expensively or to reduce their production costs.

In accordance with the time it takes to change the amount used in production processes resources, it is customary to distinguish between long-term and short-term periods of the enterprise. The short-term interval is the time interval during which the size of the enterprise, its output and costs change. At this time, the change in the volume of products occurs through a change in the volume of variable costs. In short-term periods, an enterprise can quickly change only variable factors, including raw materials, labor, fuel, and auxiliary materials. The short run divides costs into fixed and variable. During such periods, fixed costs are mainly provided, determined by fixed costs.

The fixed costs of production get their name in accordance with their invariable nature and independence in relation to the volume of production.

In the activity of any enterprise, the adoption of correct management decisions is based on the analysis of its performance indicators. One of the objectives of such an analysis is to reduce production costs, and, consequently, increase the profitability of the business.

Fixed and variable costs, their accounting is an integral part of not only the calculation of the cost of production, but also the analysis of the success of the enterprise as a whole.

The correct analysis of these articles allows you to take effective management decisions which have a significant impact on profits. For the purposes of analysis, in computer programs at enterprises, it is convenient to provide for automatic separation of costs into fixed and variable based on primary documents, in accordance with the principle adopted by the organization. This information is very important for determining the "break-even point" of the business, as well as assessing the profitability various kinds products.

variable costs

to variable costs include costs that are constant per unit of output, but their total amount is proportional to the volume of output. These include the cost of raw materials, expendable materials, energy resources involved in the main production, salary of the main production staff(together with accruals) and cost transport services. These costs are directly related to the cost of production. In value terms, variable costs change when the price of goods or services changes. Unit variable costs, for example, for raw materials in the physical dimension, may decrease with an increase in production volumes due, for example, to a decrease in losses or costs for energy resources and transport.

Variable costs are either direct or indirect. If, for example, the enterprise produces bread, then the cost of flour is a direct variable cost, which increases in direct proportion to the volume of bread produced. Direct variable costs may decrease with the improvement of the technological process, the introduction of new technologies. However, if the plant refines oil and as a result receives in one technological process, for example, gasoline, ethylene and fuel oil, then the cost of oil for the production of ethylene will be variable, but indirect. Indirect variable costs in this case, it is usually taken into account in proportion to the physical volumes of production. So, for example, if during the processing of 100 tons of oil, 50 tons of gasoline, 20 tons of fuel oil and 20 tons of ethylene are obtained (10 tons are losses or waste), then the cost of 1.111 tons of oil (20 tons of ethylene + 2.22 tons of waste) is attributed to the production of one ton of ethylene /20 tons of ethylene). This is due to the fact that in a proportional calculation, 20 tons of ethylene account for 2.22 tons of waste. But sometimes all the waste is attributed to one product. For calculations, data from technological regulations are used, and for analysis, actual results for the previous period.

The division into direct and indirect variable costs is conditional and depends on the nature of the business.

Thus, the cost of gasoline for the transportation of raw materials during oil refining is indirect, and for transport company direct, since they are directly proportional to the volume of traffic. Wages production personnel with accruals are classified as variable costs with piecework wages. However, with time wages, these costs are conditionally variable. When calculating the cost of production, planned costs per unit of production are used, and in the analysis, actual costs, which may differ from planned costs, both upwards and downwards. Depreciation of fixed assets of production, referred to a unit of output, is also a variable cost. But this relative value is used only when calculating the cost of various types of products, since depreciation charges, in themselves, are fixed costs / costs.

2.3.1. Production costs in a market economy.

production costs - It is the monetary cost of acquiring the factors of production used. Most cost effective method production is considered to be the one at which production costs are minimized. Production costs are measured in terms of costs incurred.

production costs - costs that are directly related to the production of goods.

Distribution costs - costs associated with the sale of manufactured products.

The economic essence of costs is based on the problem of limited resources and alternative use, i.e. the use of resources in this production excludes the possibility of using it for another purpose.

The task of economists is to choose the most optimal variant of the use of factors of production and minimize costs.

Internal (implicit) costs - this is the cash income that the company donates, independently using its own resources, i.e. These are the returns that could be received by the firm for its own use of resources in the best possible way to use them. opportunity cost Lost Opportunity is the amount of money required to divert a specific resource from the production of good B and use it to produce good A.

Thus, the costs in monetary form, which the company has carried out in favor of suppliers (labor, services, fuel, raw materials) is called external (explicit) costs.

The division of costs into explicit and implicit there are two approaches to understanding the nature of costs.

1. Accounting approach: to production costs all real, actual expenses in cash should be attributed (salary, rent, opportunity costs, raw materials, fuel, depreciation, social contributions).

2. Economic approach: production costs should include not only actual costs in cash, but also unpaid costs; related to the missed opportunity for the most optimal use of these resources.

short term(SR) - the length of time during which some factors of production are constant, while others are variable.

Constant factors - the total size of buildings, structures, the number of machines and equipment, the number of firms that operate in the industry. Therefore, the possibility of free access of firms in the industry in the short run is limited. Variables - raw materials, the number of workers.

Long term(LR) is the length of time during which all factors of production are variable. Those. during this period, you can change the size of buildings, equipment, the number of firms. In this period, the firm can change all production parameters.

Cost classification

fixed costs (FC) - costs, the value of which in the short term does not change with an increase or decrease in production volume, i.e. they do not depend on the volume of output.

Example: building rent, equipment maintenance, administration salary.

S is the cost.

The fixed cost graph is a straight line parallel to the x-axis.

Average fixed costs (A F C) – fixed costs per unit of output and is determined by the formula: A.F.C. = FC/ Q

As Q increases, they decrease. This is called overhead allocation. They serve as an incentive for the firm to increase production.

The graph of average fixed costs is a curve that has a decreasing character, because as the volume of production increases, the total revenue grows, then the average fixed costs are an ever smaller amount that falls on a unit of products.

variable costs (VC) - costs, the value of which varies depending on the increase or decrease in the volume of production, i.e. they depend on the volume of output.

Example: the cost of raw materials, electricity, auxiliary materials, wages (workers). The bulk of the costs associated with the use of capital.

The graph is a curve proportional to the volume of output, which has an increasing character. But its nature can change. In the initial period, variable costs grow at a higher rate than the output. As the optimal size of production (Q 1) is reached, there is a relative saving of VC.

Average variable costs (AVC) – the amount of variable costs per unit of output. They are determined by following formula: by dividing VC by the volume of output: AVC = VC/Q. First, the curve falls, then it is horizontal and sharply increases.

A graph is a curve that does not start from the origin. The general character of the curve is increasing. The technologically optimal output size is reached when AVCs become minimal (p. Q - 1).

Total Costs (TC or C) - a set of fixed and variable costs of the firm, in connection with the production of products in the short run. They are determined by the formula: TC = FC + VC

Another formula (function of volume production products): TC = f(Q).

Depreciation and amortization

Wear is the gradual loss of value by capital resources.

Physical deterioration- loss of consumer qualities by means of labor, i.e. technical and production properties.

The decrease in the value of capital goods may not be associated with the loss of their consumer qualities, then they speak of obsolescence. It is due to an increase in the efficiency of production of capital goods, i.e. the emergence of similar, but cheaper new means of labor, performing similar functions, but more advanced.

Obsolescence is a consequence of scientific and technological progress, but for the company it turns into an increase in costs. Obsolescence refers to changes in fixed costs. Physical wear and tear - to variable costs. Capital goods last more than one year. Their value is transferred to finished products gradually as it wears out - this is called depreciation. Part of the proceeds for depreciation is formed in the depreciation fund.

Depreciation deductions:

Reflect the assessment of the amount of depreciation of capital resources, i.e. are one of the cost items;

Serves as a source of reproduction of capital goods.

The state legislates depreciation rates, i.e. the percentage of the value of capital goods by which they are considered depreciated in a year. It shows how many years the cost of fixed assets should be reimbursed.

Average total cost (ATC) – the sum of the total costs per unit of production:

ATC = TC/Q = (FC + VC)/Q = (FC/Q) + (VC/Q)

The curve is V-shaped. The output corresponding to the minimum average total cost is called the technological optimism point.

Marginal Cost (MC) – the increase in total costs caused by an increase in production by the next unit of output.

Determined by the following formula: MC = ∆TC/ ∆Q.

It can be seen that fixed costs do not affect the value of MC. And MC depends on the increment in VC associated with an increase or decrease in output (Q).

Marginal cost measures how much it will cost a firm to increase output per unit. They decisively influence the choice of the volume of production by the firm, since. this is exactly the indicator that the firm can influence.

The graph is similar to AVC. The MC curve intersects the ATC curve at the point corresponding to the minimum total cost.

In the short run, the company's costs are both fixed and variable. This follows from the fact that the company's production capacity remains unchanged and the dynamics of indicators is determined by the growth in equipment utilization.

Based on this graph, you can build a new graph. Which allows you to visualize the capabilities of the company, maximize profits and view the boundaries of the existence of the company in general.

For the decision of the company, the most important characteristic is the average values, the average fixed costs fall as the volume of production increases.

Therefore, the dependence of variable costs on the function of production growth is considered.

At stage I, average variable costs decrease, and then begin to grow under the influence of economies of scale. For this period, it is necessary to determine the break-even point of production (TB).

TB is the level of physical volume of sales over the estimated period of time at which the proceeds from the sale of products coincide with production costs.

Point A - TB, where revenue (TR) = TS

Restrictions that must be observed when calculating TB

1. The volume of production is equal to the volume of sales.

2. Fixed costs are the same for any volume of production.

3. Variable costs change in proportion to the volume of production.

4. The price does not change during the period for which the TB is determined.

5. The price of a unit of production and the cost of a unit of resources remains constant.

Law of diminishing returns is not absolute, but relative, and it operates only in the short term, when at least one of the factors of production remains unchanged.

Law: with an increase in the use of one factor of production, while the rest remain unchanged, sooner or later a point is reached, starting from which the additional use of variable factors leads to a decrease in the increase in production.

The action of this law assumes the immutability of the state of technically and technologically production. And so technological progress can change the scope of this law.

The long run is characterized by the fact that the firm is able to change all the factors of production used. In this period variable nature of all applied factors of production allows the firm to use the most optimal options for their combination. This will be reflected in the magnitude and dynamics of average costs (costs per unit of output). If a firm decides to increase output, but initial stage(ATS) will first decrease, and then, when more and more new capacities are involved in production, they will begin to increase.

The graph of long-term total costs shows seven different options (1 - 7) for the behavior of ATS in the short term, since The long run is the sum of the short runs.

The long run cost curve consists of options called growth steps. In each stage (I - III) the firm operates in the short run. The dynamics of the long-run cost curve can be explained using scale effect. Change by the firm of the parameters of its activities, i.e. the transition from one version of the size of the enterprise to another is called change in the scale of production.

I - on this time interval, long-term costs decrease with an increase in the volume of output, i.e. there is economies of scale - a positive effect of scale (from 0 to Q 1).

II - (this is from Q 1 to Q 2), at this time interval of production, the long-term ATS does not react in any way to an increase in production volume, i.e. remains unchanged. And the firm will have constant returns to scale (constant returns to scale).

III - long-term ATS with an increase in output grow and there is a loss from the increase in the scale of production or negative scale effect(from Q 2 to Q 3).

3. AT general view profit is defined as the difference between total revenue and total costs for certain period time:

SP = TR –TS

TR ( total revenue) - the amount of cash receipts by the company from the sale of a certain amount of goods:

TR = P* Q

AR(average revenue) is the amount of cash receipts per unit of products sold.

Average revenue is equal to the market price:

AR = TR/ Q = PQ/ Q = P

MR(marginal revenue) is the increase in revenue that arises from the sale of the next unit of production. In the condition perfect competition it is equal to the market price:

MR = ∆ TR/∆ Q = ∆(PQ) /∆ Q =∆ P

In connection with the classification of costs into external (explicit) and internal (implicit) different concepts of profit are assumed.

Explicit costs (external) determined by the amount of expenses of the enterprise to pay for the purchased factors of production from the outside.

Implicit costs (internal) determined by the cost of resources owned by the enterprise.

If we subtract from total revenue external costs, we get accounting profit - takes into account external costs, but does not take into account internal ones.

If we subtract internal costs from accounting profit, we get economic profit.

Unlike accounting profit, economic profit takes into account both external and internal costs.

Normal profit appears in the case when the total revenue of an enterprise or firm is equal to the total costs, calculated as alternative. The minimum level of profitability is when it is profitable for an entrepreneur to do business. "0" - zero economic profit.

economic profit(net) - its presence means that resources are used more efficiently at this enterprise.

Accounting profit exceeds the economic one by the amount of implicit costs. Economic profit serves as a criterion for the success of the enterprise.

Its presence or absence is an incentive to attract additional resources or transfer them to other areas of use.

The purpose of the firm is to maximize profit, which is the difference between total revenue and total costs. Since both costs and income are a function of the volume of production, the main problem for the firm is to determine the optimal (best) volume of production. The firm will maximize profit at the level of output at which the difference between total revenue and total cost is greatest, or at the level at which marginal revenue equals marginal cost. If the firm's losses are less than its fixed costs, then the firm should continue to operate (in the short run), if the losses are greater than its fixed costs, then the firm should stop production.

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