What is isocost and isoquant lines?
Isocost curve is a producer’s budget line while isoquant is his indifference curve. Isoquant indicates various combinations of two factors of production which give the same level of output per unit of time.
What is the shape of an isocost line?
An isocost line is a curve which shows various combinations of inputs that cost the same total amount . For the two production inputs labour and capital, with fixed unit costs of the inputs, the isocost curve is a straight line .
Why isocost lines are straight lines?
The slope of the isocost line is shown through the marginal rate of transformation described by the ratio of the prices of the inputs used. When the input prices and the quantities used are fixed, the isocost line is considered straight.
What is isoquant line?
An isoquant (derived from quantity and the Greek word iso, meaning equal), in microeconomics, is a contour line drawn through the set of points at which the same quantity of output is produced while changing the quantities of two or more inputs.
How do I find isocost lines?
The isocost line is a firm’s budget constraint when buying factors of production. To calculate the isocost line for a firm, begin with the total cost equation, TC = (W x L) + (r x K) and solve for K. W= wages, L =labor, r = the rent (what you pay for the use of capital), and K = capital.
What is the slope of the isoquant?
The slope of an isoquant at any point is the slope of a tangent line at that point. The slope is called the marginal rate of technical substitution (MRTS). It tells the firm how much capital is needed to replace a unit of labor to maintain the output.
Why is isoquant convex to the origin?
Isoquants are convex to the origin This is because of the operation of the principle of diminishing marginal rate of technical substitution. MRTS is the rate at which marginal unit of an input can be substituted for another input making the level of output remain the same.
How do you find isoquant lines?
Rearranging terms we obtain an equation for the slope of an isoquant: dL/dK = – MPl /MPk . Note that as we move from left to right along an isoquant we increase the amount of labor while decreasing the amount of capital.
Why does isoquant slope downward?
The isoquants slope downward because both labour and capital have positive marginal products. More of either input increases output; so if output is to be kept constant as more of one input is used, less of other input must be used.
What is the isocost and isoquant line?
The isocost and isoquant line are used to determine the cost minimising level of output produced by a competitive firm. The isoquant is defined as all the feasible combinations of inputs used to produce a given level of output. In the illustration above we have an commodity which is produced using capital and labour.
What is the point at which the isocost line is tangent to?
The point at which the isocost line is tangent to the highest-possible isoquant is the point at which the firm maximizes its output keeping in view its cost constraints. An isocost cost line can be drawn for any two factors of production if we know the total cost budget and prices per unit of each input.
Which idea does the isoquant capture?
The idea that the isoquant captures is that there is diminishing returns to each input. The isocost line shows all the different combinations of inputs that could be purchased for a given level of costs. The illustration above depicts an isocost curve where the total cost is $10, the wage rate is $1 and the rental rate of capital is $1.
Why do all the isocost lines have the same slope?
All the isocost lines in the diagram have the same slope because the relative prices of labour and capital are the same. If labour were relatively more expensive, the isocost lines would be steeper in Fig. 2. Cost minimisation occurs when an isoquant is just tangent to (but does not cross) an isocost line.