The problem of double coincidence of wants is associated with:
a. paper money.
b. insurance

Which of the following goods is most likely to have a negative income elasticity of demand?

a. Automobiles b. Bargain brand noodles c. Shoes d. Fine Jewelry

The market system works by getting each person, motivated by his or her own self-interest, to produce products for other people.

Answer the following statement true (T) or false (F)