Cashing out capital gains in Virtual Currency System #3 (i.e., turning virtual capital gains into real world currencies) causes the nation's:

Which one of the following variables is most likely to increase as production effort is increased?

a. Net revenue b. Marginal costs c. Marginal revenue d. Total costs e. Average revenue

The price elasticity of demand for a good tends

A) not to vary over time because people adjust to changed circumstances. B) to be greater over the long run than over a short period of time. C) to be less over the long run than over a short period of time. D) to rise when the demand increases. E) toward unity in the long run.