Differences in income can be accounted for by differences in:
a. age

Government regulation of monopolies is designed to

a. prevent price discrimination b. eliminate rent-seeking activities c. reduce barriers to entry into monopolized markets d. keep prices and profits lower than they would otherwise be e. ensure that monopolies are minimizing costs

As you eat a banana, there is less and less of it left. If others were expecting to eat it too, they are out of luck. In this sense, a banana is a(n)

a. exclusive good b. rival good c. public good d. merit good e. nonexclusive good