1) The marginal product of labor in the production of oatmeal raisin cookies is 75 cookies per hour. The marginal rate of technical substitution of hours of labor for hours of machine capital is 1/10. What is the marginal product of capital? (5 pts)
2) A firm has a fixed production cost of $10,000 and a constant marginal cost of production of $200 per unit produced. What is the firm’s total cost function? What is its average cost function? (8 pts)
Answer 1 :-
Let,
Marginal rate of technical substitution of hours of labor for hours of machine capital = MRTS
Marginal product of capital = MPC
Marginal product of labor = MPL
In order to calculate MPC, we have to use following relation ;
MRTS = MPL/MPC
1/10 = 75/MPC
MPC = 75/0.1 = 750
Hence, the marginal product of capital will be 750.
Answer 2 :-
Fixed Cost (FC) = $10,000
Marginal cost (MC) = $200
Variable cost (VC) = $200Q
Total cost (TC) = FC + VC
TC = 10,000+200Q
Thus, the total cost function will be TC(Q) = 10,000 + 200Q
Now for average cost function AC(Q) ;
AC(Q) = TC(Q)/Q
AC(Q) = (10,000 + 200Q)/Q
AC(Q) = (10,000/Q) + 200
Thus the average cost function will be AC(Q) = (10,000/Q) + 200
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