If a country - during its entire history - has invested more in the rest of the world than the rest of the world has invested in it, the country is a

The existence of discouraged workers will lead to an official unemployment rate that is

A) overstated. B) understated. C) either overstated or understated. D) unbiased.

What would happen in the market for knee replacement surgery if insurance companies started to cover a smaller portion of the cost of the surgery, and fewer doctors decide to enter the field of joint replacement surgery?

A) Demand will decrease, but this will not shift the supply curve. B) Supply will decrease, but this will not shift the demand curve. C) Demand and supply will both decrease. D) Demand will decrease and supply will increase.