At the current price of a good, Al's consumer surplus equals eight, and Ben's consumer surplus equals 15. By charging a two-part tariff, a monopolist could increase his profit by

If the long-run Phillips curve shifts to the right, then for any given rate of money growth and inflation the economy has

a. higher unemployment and lower output. b. higher unemployment and higher output. c. lower unemployment and lower output. d. lower unemployment and higher output.

Which of the following is true?

A. Japan has a high export ratio. B. Ireland has a low export ratio. C. The European nations tend to have lower export ratios. D. The United States has a very low export ratio.