Which of the following countries actually experienced negative economic growth from 1960 to 2011?

The interest rate effect operates through

A) labor supply. B) government spending levels. C) the purchasing power of individuals' checking accounts. D) credit markets by changing borrowing costs.

Samantha is at a friend's house for dinner. Her friend says "I can re-heat either the lasagna or the fried rice." Samantha likes them both, but chooses the fried rice. Does Samantha's choice entail a cost?

A) No—as long as her friend didn't charge Samantha for the meal. B) Yes—Samantha sacrificed the opportunity to eat lasagna. C) Yes—as long as Samantha reimburses her friend for the cost of re-heating the meal. D) Both A and C above.