7) Suppose that the production function for the economy is Y = AK0.2L0.8. If the capital stock = 40,000, the quantity of labor = 10,000, and the efficiency index = 1, the marginal product of labor is
A) $0.80.
B) $1.06
C) $1.32
D) $5.26
7) Suppose that the production function for the economy is Y = AK0.2L0.8. If the capital...