Suppose MPL = 0.5 (q/L) and MPK = 0.5 (q/K). In the long run, the firm will hire equal amounts of capital and labor

Suppose MPL = 0.5 (q/L) and MPK = 0.5 (q/K). In the long run, the firm will hire equal amounts of capital and labor




A) all of the time.
B) only when w = r.
C) only when w = 0.5 * r.
D) at no point in time.


Answer: only when w = r.


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