contestada

g a firm produces according to the production function q=K.8 L.2, where q denotes units of output and k units of capital and L units of labor. The price of capital is $24 per unit, and the price of labor is $12 per unit. What is the optimal capital/labor ratio?

Respuesta :

Answer:

1.25

Explanation:

The production function is correctly sated as follows:

[tex]q = K^{0.8}L^{0.2}[/tex]

[tex]MP_{K} = 0.8K^{-0.2}L^{0.2}[/tex]

[tex]MP_{L} = 0.2K^{0.8}L^{-0.8}[/tex]

Where, [tex]MP_{K}[/tex] represents marginal product of capital, and [tex]MP_{L}[/tex] represents marginal product of labor.

At the optimal level, we have:

[tex]\frac{MP_{K}}{MP_{L}} = \frac{P_{K}}{P_{L}}[/tex]

Where, [tex]P_{K}[/tex] represents price of capital, and [tex]P_{L}[/tex] price of labor.

[tex]\frac{0.8K^{-0.2}L^{0.2}}{0.2K^{0.8}L^{-0.8}} = \frac{24}{12}[/tex]

[tex]0.4\frac{L}{K} = 2[/tex]

[tex]\frac{L}{K} = 0.8[/tex]

[tex]\frac{K}{L} =\frac{1}{0.8} = 1.25[/tex]

Therefore, the optimal capital/labor ratio is 1.25.