According to economist Jean-Pierre Dube, a 10 percent increase in the price of a twelve-pack of Mountain Dew will lead to a ______ percent increase in the sales of twelve-packs of Pepsi.

One of the economic costs of holding currency is that

A) it fulfills no transactions role. B) it fulfills no precautionary role. C) its real value always increases. D) it earns no interest income.

Which of the following statements correctly characterizes fertility rates in the postwar period?

a. The birth rate rose steadily, beginning during the Great Depression and continuing until 1950. b. The birth rate peaked in the late 1950s, then began a steep decline reaching very low rates in the 1970s. c. The birth rate has fallen steadily since 1940 due to the increased labor force participation of women. d. During the postwar period, the birth rate has tended to rise in during recessions and fall during periods of economic growth.