Question

The owner of the Martin Marina believes that the relationship between the number of boats serviced...

The owner of the Martin Marina believes that the relationship between the number of boats serviced and labor inputs is Q = -3 + 8.5L - 2L ^2 . . Her firm receives $40 for each boat serviced and the cost per unit of labor is $20.

a) How many units of labor should she employ in order to maximize profit?

b) What is the firm’s profit?

Homework Answers

Answer #1

We have the following information Q = -3 + 8.5L - 2L^2, price P = $40 for each Q and wages w = $20.

a) The optimum rule for hiring labor is MRP = wage rate

MRP is marginal revenue product = marginal product of labor x price of product

MRP = (8.5 - 4L)*40 and wage rate = 20

This implies the optimum L* is

340 - 160L = 20

L* = 2

Optimum labor units is 2.

b) Profit is the difference between Revenue and cost. Output is Q = -3 + 8.5*2 - 2*(2^2) = 6.

Hence Profit = 6*40 - 2*20 = $200.

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