If banks do not loan out all their excess reserves, then the real world multiplier is

Which function of money allows consumers who are searching for a new car to compare the costs of different optional features of different cars in order to determine if they want the features or not?

a) Medium of exchange b) Unit of account c) Store of value d) Barter

When demand is unit elastic, price elasticity of demand equals

a. 1, and total revenue and price move in the same direction. b. 1, and total revenue and price move in opposite directions. c. 1, and total revenue does not change when price changes. d. 0, and total revenue does not change when price changes.