In economics an isocost line shows all combinations of inputs which cost the same total amount given total cost of inputs. A line joining tangency points of isoquants and isocosts (with input prices held constant) is called the expansion path. An isoquant is a contour line drawn through the set of points at which the same quantity of Isoquants are typically drawn along with isocost curves in capital- labor graphs, showing the technological tradeoff between capital and labor in the . Isoquants: An isoquant (equal quantity) is a curve that shows the combinations of certain inputs such as Labor (L) and Capital (K) that will produce a certain.

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Isoquant – Wikipedia

Isoquants, abbreviated as IQs, possess the same properties as those of the indifference curves. Community Community portal Web chat Mailing list. Equivalently, it gives the maximum level of output that can be produced for a given total cost of inputs. An iso-cost line closer to origin indicates a lower total cost outlay. Each return form has two forms of acknowledgements attached to it. Advance Tax refers to paying a part of your taxes before the end of the financial year.

An isocost line is a locus of points showing the alternative combinations of factors that can be purchased with a fixed amount of money. An isoquant is a locus of points showing all the technically efficient ways of combining factors of production to produce a fixed level of output. Top 14 Peculiarities of Labour Production Economics. On the incomes they have earned themselves. Username or Email Password. If, in the short run, its total output remains fixed due to capacity constraint and if it is a price-taker i.


From Wikipedia, the free encyclopedia. From the theory of production where only one or two inputs are variable, we proceed to examine cases in which all inputs are variable. So, like the consumer the producer has also to operate under a budget resource constraint. If the isoquants are smooth and convex to the origin and the cost-minimizing input bundle involves a positive amount of each input, then this bundle satisfies the following two conditions:.

Table 1 illustrates, by using hypothetical numbers, seven alternative methods of producing six units of output. The long-run production function of a firm involving the usage of two factors, say, capital and labour is represented by equal-product curve or isoquant.

Explain a firm’s equilibrium with the help of isoquants and isocost line.

In other projects Wikimedia Commons. Since K 2 L 2 is closer to origin as compared to the iso-cost line K 3 L3, it represents relatively lower cost. The decision to supply an extra unit depends on the marginal cost of producing that unit.

Thus at a point of equilibrium marginal physical productivities of the two factors must be equal the ratio of their prices.

Also, every possible combination of inputs is on an isoquant. In fact, every point on a given isocost line represents the same total aand.


A higher isoquant represent lower level of output. To construct isocost lines we need information about the market prices of the two factors. Conversely, if the distance is decreasing as output increases, the firm is experiencing increasing returns to scale; doubling both inputs results in placement isoquans an isoquant with more than twice the output of the original isoquant. Moreover, supply depends on cost of production. A; with a given level of production Q3, input X can be replaced by input Y at an unchanging rate.

Cost minimisation occurs when an isoquant is just tangent to but does not cross an isocost line.


The capacity of the producer is shown by his monetary resources, i. If the two inputs are perfect complements, the isoquant map takes the iwoquants of fig.

This combinations must be the most efficient ones — i. A set of isocost lines can be drawn for different levels of factor prices, or different sums of money. All these and other various combinations are shown in Fig.

Returns to a factor studies the behavior of output when more and more units of the variable factor is combined with the fixed fact Isoquants are typically combined with isocost lines in order to solve a cost-minimization problem for given level of output. The focus of this chapter is on the firm. But, the desire to produce a commodity is not enough. A change in factor price makes changes in the slope of isocost lines as shown in the figure.

By moving from F to E or from G to E, the producer attains the same output level at a lower cost. An isoquants shows all those combinations of factors which produce same level of output.

The minimum-cost points are A, D and E. Isoquants are typically drawn along with isocost curves in capital-labor graphsshowing the technological tradeoff between capital and labor in the production functionand the decreasing marginal returns of both inputs. The producer must have sufficient capacity to buy necessary factor inputs to be able to reach its desired production level.

Views Read Edit View history. The cost-minimization problem of the firm is to choose an input bundle KL feasible for the output level y that costs as little as possible.

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