The purchase of a Boeing airplane by the U.S. government is considered part of government consumption expenditures and gross investment

Refer to the graphs. Assume that pizza is measured in slices and beer in pints. In which of the graphs is the opportunity cost of a pint of beer the lowest?

A. Graph A.
B. Graph B.
C. Graph C.
D. Graph D.

Transactions costs are:

A. the time and energy involved with creating an exchange. B. often cited as a reason why purchasing power parity doesn't hold. C. usually higher when transactions take place internationally. D. All of these statements are true.