Suppose a monopolist faces the demand curve shown below.  If the monopolist's marginal cost is constant and equal to $30, its profit-maximizing level of output is:

The Solow Growth Model is a tool that is used for studying:

A) how aggregate demand is determined. B) how net exports are determined. C) how aggregate supply is determined. D) how aggregate income is determined.

To maximize the economic pie, government should

A) provide only those public goods whose benefits outweigh their costs. B) provide no public goods. C) provide only those public goods whose costs outweigh their benefits. D) provide all possible pure public goods.