An economic forecasting firm has estimated the following equation from historical data based on the neoclassical growth model: The coefficient on the growth rate of labor XXXXXXXXXXin this equation is...

An economic forecasting firm has estimated the following equation from historical data based on the neoclassical growth model:

The coefficient on the growth rate of labor (0.72) in this equation is best interpreted as:

A. the labor force participation rate.

B. the marginal productivity of labor.

C. the share of income earned by labor.