The price of a tomato increases and people buy more lettuce. You infer that lettuce and tomatoes are ________

The most important function of money is to

A) allow for positive interest rates. B) enable people to measure their own personal worth. C) facilitate the collection of taxes. D) encourage greed among people. E) serve as a medium of exchange.

In autarky, when a community maximizes its standard of living, its production point is

A) below the production possibility frontier. B) on the production possibility frontier. C) above the production possibility frontier. D) Can't tell without more information.