Let L represent the number of workers hired by a firm and let Q represent that firm’s quantity of output. Assume two points on the firm’s production function are (L = 12, Q = 122) and (L = 13, Q = 130). Then the marginal product of the 13th worker is
Question
Let L represent the number of workers hired by a firm and let Q represent that firm’s quantity of output. Assume two points on the firm’s production function are (L = 12, Q = 122) and (L = 13, Q = 130). Then the marginal product of the 13th worker is
Solution
The marginal product of labor (MPL) is the additional amount of output (Q) that was produced when one more worker (L) was hired. It can be calculated by the change in output divided by the change in labor.
Given the two points on the firm's production function (L = 12, Q = 122) and (L = 13, Q = 130), we can calculate the MPL of the 13th worker as follows:
Change in output (ΔQ) = Q2 - Q1 = 130 - 122 = 8 Change in labor (ΔL) = L2 - L1 = 13 - 12 = 1
So, the marginal product of the 13th worker (MPL) = ΔQ / ΔL = 8 / 1 = 8
Therefore, the marginal product of the 13th worker is 8.
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