In the United States during the period from 1870 to 1940, the price level was most likely to

If Congress increased the tax rate on interest income, investment

a. would increase and saving would decrease. b. would decrease and saving would increase. c. and saving would increase. d. and saving would decrease.

If an increase in income leads to in an increase in the demand for peanut butter, then peanut butter is

A) a neutral good. B) a normal good. C) a necessity. D) a complement.