A negative income tax program provides a simple way to assist the unemployed

Adam Smith used the metaphor of the "invisible hand" to explain how

A) business owners are benevolent. B) markets mismatch buyers and sellers. C) people acting on their own self-interest promote the interest of society as a whole. D) the production possibilities frontier illustrates efficient outcomes.

According to Keynesians, the primary source of business cycle fluctuations is

A) aggregate demand shocks. B) productivity shocks. C) oil price shocks. D) consumer confidence shocks.