Since the 1970s, the percentage of all workers represented by unions has

If a rich country grows at a faster rate than a poor one, then

A) the gap in their standard of living will widen over time. B) the gap in their standard of living will close over time. C) the difference in their living standards will not change over time. D) whether or not the living standards gap widens or closes over time depends on the absolute size of the relative growth rates.

The law of demand says that as the price of a good rises,

a. buyers recognize that price may be even higher in the future, and so they buy now b. buyers purchase less in hopes that the price will fall in the future c. buyers purchase less, in part because their real income has fallen d. buyers purchase more, in part because the price of a substitute has risen e. buyers purchase more, in part because it has higher status at a higher price