If the Consumer Price Index (CPI) increases from 100 to 200 and the nominal wage increases from $100 to $400, what is the change in the real wage in terms of the beginning year's dollars?

How does the aggregate-demand curve shift when increased uncertainty and pessimism about the future of the economy lead firms to desire less investment spending?

a. The curve shifts to the right. b. The curve shifts to the left. c. The curve does not shift at all. d. The curve first shifts to the right and then shifts to the left.

Which of the following statements is true?

a. The money price is usually the same as the time price for most consumers. b. The money price of a good is always greater than the time price. c. The money price is always greater for high-wage earners than for low-wage earners. d. The time price is usually less for low-wage earners than for high-wage earners. e. The time price of a good is directly proportional to the money price.