Answer to Question #308672 in Microeconomics for Janbare

Question #308672

Suppose the production function of a firm is given as X=0.5L ½ K½ price of labor and capital are given as $5 and $10 respectively, and the firm has cos out lay of$ 600



I. The profit maximizing level of L & K to employ.



II. The MRTSL,K at optimum

1
Expert's answer
2022-03-13T19:00:32-0400

production function, X= 0.5l0.52k0.50.5l^{0.5}2k^{0.5}

MPL=dxdl\frac{dx}{dl} =0.25l0.52k0.50.25l^{0.5}2k^{0.5}

MPK=dxdk\frac{dx}{dk} =.5l0.5k0.5.5l^{0.5}k^{0.5}

MRTS=MPL/MPK=w/r

w=5

r=10

MRTS = ( 0.25l0.52k0.50.25l^{0.5}2k^{0.5} / (0.5l0.5k0.50.5l^{0.5}k^{0.5} )

kl\frac{k}{l} = 12\frac{1}{2}

K=2L

Calculating the combination of labor that maximizes the firm's output

C = wL + rK, and K=2L

600=5L + 10×2l10\times2l

600=25L

L=24

K=2L = 48

Combination of labor and capital that maximizes the firm's output is;

w,r)=(24,48)

Maximum output, X= 0.5l0.52k0.50.5l^{0.5}2k^{0.5}

X= 0.5(24)0.52(48)0.50.5(24)^{0.5}2(48)^{0.5}

=33.96

Maximum output= 33.96

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