The more times a worker performs a particular task, the more proficient the worker becomes at that task. This source of productivity increase is called

The National Collegiate Athletic Association (NCAA) has long argued that nationally-prominent college athletes are compensated with an investment in human capital that far exceeds the monetary reward of playing professional sports. Examine this argument in light of your knowledge of human capital theory and the economic theory of labor markets

Alcoa had a monopoly in the U.S. aluminum market from the late nineteenth century until the end of World War II. Which barrier to entry was the source of Alcoa's monopoly power?

A. ownership of a vital resource B. government franchises and licenses C. patents and copyrights D. economies of scale