If the quantity of money supplied does not respond to changes in the interest rate, then the money supply curve is

In 1910, 8.6 percent of American 17-year olds were high school graduates. By 1938, this figure _____

a. had fallen to 5 percent. b. equaled 15 percent. c. had risen to nearly 50 percent. d. had not changed appreciably.

The main reason that firms adjust their output when the price level changes is that

a. uncertainty causes a drop in output. b. taxes cause a supply-side reaction. c. their profit margins change. d. increased risks lead to a change in output. e. All of the above are correct.