Given the production function q = 4L + K, what is the marginal product of labor when capital is fixed at 50?
A)54
B)4
C)50
D)250

Question

Quizplus · Accepted Answer

The marginal product of labor (MPL) is the additional output produced by one additional unit of labor while holding all other inputs constant. Mathematically, MPL = ∂q/∂L. Taking the partial derivative with respect to L, we get MPL = 4. This means that each additional unit of labor increases output by 4. Since capital is fixed at 50, it does not affect the MPL. Therefore, the answer is B, MPL = 4.

Given the Production Function Q = 4L + K, What