When people who are holding the money of some other country want to exchange it for U.S. dollars, they ________ U.S. dollars and ________ that other country's money

There are several types of barriers to entry that can create a monopoly. Which of the following barriers is the result of government action?

A) public franchise B) control of a key resource C) economies of scale D) network externalities

Which component of current U.S. GDP under the expenditure approach is most likely to be negative?

a. consumption b. government purchases c. net exports d. investment