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March 27, 2015

March 27, 2015

Posted by **anonymous** on Wednesday, April 1, 2009 at 8:02am.

- economics -
**economyst**, Wednesday, April 1, 2009 at 9:39amTake a shot, what do you think.

Hint. Set MC=MR. You have MR. Since one worker can groom 20 dogs, MC=w/20.

Hint 2: Q can be translated into number of workers (L). You are given 20Q=L. So Q=L/20.

By substitution, you should be able to get a demand function in the form w=f(L)

- economics -
**anonymous**, Wednesday, April 1, 2009 at 11:13amThanks for the input.

- economics -
**anonymous**, Wednesday, April 1, 2009 at 1:00pmI think it is 10, is that correct?

- economics -
**economyst**, Wednesday, April 1, 2009 at 1:37pmNot correct. I believe your answer should be in the form L=f(w) where L is the number of laborers. This is a demand function for labor (and is the invers of w=f(L) as i hinted before)

you are given MR=20-.2Q. As I stated before MC=w/20. In equilibrium, MC=MR.

So: w/20 = 20-.2Q.

So: w = 400-4Q

As I stated before, we can translate Q into labors needed: Q=L/20. Substitue this into the equation above.

So: w = 400-4(L/20)

w = 400 -.2L

So:

L = 2000 - 5w

- economics -
**kit**, Saturday, October 17, 2009 at 1:55amit's not L/20. it's supposed to be 20L. therefore, VMP=MPxMR. MP is the derivative of P=20x0.1Q so MP=20. VMP=20x(20-0.2Q) => 400-4Q => 400-4(20L) => 400-80L

Then VMP has to equal wage. VMP=w => 400-80L=w => 400-w=80L => (400/80)-(w/400)=L

L=5-0.0125w.

that is the labor demand curve.

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