________: as successive units of a variable input are added to a production process with the other inputs held constant, the marginal physical product eventually decreases

In the long run, the crowding-out effect of an increase in government purchases is

a. more complete than in the short run b. canceled out by increases in infrastructure spending c. less complete than in the short run d. canceled out by improved consumer confidence e. a multiple of the initial change in spending

Antitrust laws

a. prevent firms from maximizing profits. b. allow the government to prevent mergers, even ones that would benefit consumers. c. require the government to measure both the benefits and costs of a potential merger. d. All of the above are correct.