As a person increases his or her caloric intake, the person's weight increases, ceteris paribus. The relationship between the person's caloric intake and the person's weight is an example of

Actual real GDP will be above potential GDP if

A) inflation is rising. B) firms are producing below capacity. C) firms are producing at capacity. D) firms are producing above capacity.

For a competitive buyer, the marginal expenditure per unit of an input

A) exceeds the average expenditure per unit. B) is less than the average expenditure per unit. C) equals the average expenditure per unit. D) any of the above could be true.