A constant-cost industry is one that can expand and contract without effecting per unit production costs

The investment component of GDP includes: a. funds in individual retirement accounts

b. construction of a new steel mill. c. the sale of shares of Coca-Cola stock. d. the purchase of a refrigerator by a household.

A public good is

a. always depletable and excludable. b. always depletable and often excludable. c. never depletable and always excludable. d. never depletable and always nonexcludable.