Question

In: Economics

The nation of Ectenia has 40 competitive apple orchards, which sell apples at the world price...

The nation of Ectenia has 40 competitive apple orchards, which sell apples at the world price of $2 per apple. The following equations describe the production function and the marginal product of labor in each orchard: Q = 120L−L2, MPL = 120−2L where Q is the number of apples produced in a day, L is the number of workers, and MPL is the marginal product of labor. What is each orchard’s labor demand as a function of the daily wage W?

L=60−0.25W

L=2,400−10W

L=120−2W

L=60−0.5W

What is the market’s labor demand?

L=2,400−10W

L=60−0.25W

L=2,400−0.25W

L=120−10W

Ectenia has 200 workers who supply their labor inelastically. The equilibrium wage is $__ per worker per day. Each orchard hires workers and makes a profit of $__ per day. (Note: Assume that wages are the firm’s only costs.)

Solutions

Expert Solution

The orchard's labor demand will be equal to the value of its marginal product. Therefore, w=VMP

w=VMP = P*MPL = 2 (120-2L) = 240-4L

From the above equation we have

L= 60-0.25w

From the above equation we have

L= 60-0.25w

Therefore, each orchard's labor demand as a function of w is:

L= 60-0.25w

Therefore, the correct option is a.

The market demand curve for labor will be the horiontal summation of 40 orchard demand curves summed over L

From the above equation we have

L= 60-0.25w

Therefore the market demand curve will be

L= 40(60-0.25w)

L=2400-10w

Therefore, the correct option is a.

Ectenia has 200 workers who supply their labor inelastically. Then market equilibrium will be when

200=2400-10w

w=220

The equilibrium wage is 220 per worker per day.

Each orchard will have 200/40= 5 workers and will produce

Q= 120*5-(5)2 = 575 apples

Total revenue of each orchard will be 575*2= $1150

If we assume that wages are the firm's only cost then total cost for each orchard will be 220*5=$1100.

Therefore, Profit for each orchard will be $1150-$1100 = $50

Therefore, each orchard hires and makes a profit of $50 per day.


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