For any pair of nations and goods, if each country has a comparative advantage in the production of one product, it is reasonable to expect that specialization and trade will benefit both countries.

Brittany must write a political science term paper and prepare for an economics exam. The production possibilities curve between political science and economics preparation is a straight line. As time spent studying economics increases, the opportunity cost of studying for economics: a. increases

b. remains the same. c. decreases. d. first increases then decreases.

It has often been remarked that Democratic candidates are more liberal in the Democratic primaries and Republican candidates are more conservative in the Republican primaries than either is in the general election. The explanation for this is most probably that

A) they are facing politically different opponents in the two elections. B) the median voter preferences are more to the left (right) in the primaries than in the general election. C) more people vote in the general election than in the primaries. D) candidates are not as likely to locate the position of the median voter in the (earlier) primaries as they are in the (later) general election.