In the absence of discrimination, as human capital investments increase, wages will generally

Which of the following characteristics does perfect competition share with monopolistic competition?

a. price-taking firms b. zero long-run economic profit c. homogeneous product d. some barriers to entry e. economies of scale in production

In 2013, the U.S. spent more on research and development than any other country in the world

a. True b. False Indicate whether the statement is true or false