Ordinary income is taxed at a higher rate than capital gains

The investment demand curve as a function of various possible interest rates for the entire economy is assumed to be:

a. positively sloped. b. negatively sloped. c. rising, then falling. d. falling, then rising.

If the population is split up into quintiles by income, the bottom quintile would include:

A. the poorest half of the population. B. the poorest 60 percent of the population. C. the richest half of the population. D. the poorest 20 percent of the population.