According to the text, what share of the world's countries now use floating exchange rate systems?

Neither the supply of nor demand for a good is perfectly elastic or perfectly inelastic. So, imposing a tax on the good results in a ________ in the price paid by buyers and ________ in the equilibrium quantity

A) rise; an increase B) rise; a decrease C) fall; an increase D) fall; a decrease E) rise; no change

A credit card is

A) money. B) barter money. C) not money. D) fiat money. E) not money, but the card's credit line is money.