If the world price is above the domestic "no-trade" equilibrium price, then with international trade, the shortage caused in the domestic market can be met by foreign imports

The idea of increasing opportunity cost is reflected in the

A) bowed in shape of the production possibilities frontier. B) bowed out shape of the production possibilities frontier. C) linear shape of the production possibilities frontier. D) fact that the PPF shows there are unattainable production points. E) positive slope of the production possibilities frontier.

If Hispanics are paid less than their marginal product, then

a. cooperation among firms can perpetuate this wage discrimination. b. employers can engage in discrimination at zero cost. c. nondiscriminating firms will hire more Hispanics. d. whites will be paid compensating differentials.