The U.S. economy in the 1990s benefited from an aggregate supply curve shifting outward.

The labor force is defined as

A) all individuals who are at least 16 years old and are currently employed. B) all individuals who are currently employed. C) all individuals who are at least 16 years old and are employed, looking for work or not looking for work. D) all individuals who are at least 16 years old and are currently employed or unemployed.

If Jessie studies economics for two hours instead of going to the movies with her friends, then

A) the benefit of studying is the missed movie. B) the opportunity cost of studying is the missed movie. C) Jesse definitely is making a rational choice. D) Jessie is ignoring a sunk cost. E) Jessie is not responding to any incentives.