The ratio at which a country can trade its exports for imports from other countries is called comparative advantage

A game in which one player's winnings equal the other player's losings is called a

A) tit-for-tat game. B) all-or-nothing game. C) fair-and-balanced game. D) zero-sum game.

The change in the savings rate during the 1990s is NOT consistent with

A) Friedman's permanent-income hypothesis. B) Modigliani's life cycle hypothesis. C) the boom in the stock market. D) All of the above.