Given the graph shown, the quantity that would be associated with the price of $4 in a supply table would be:

When a price ceiling below the equilibrium price is imposed on a good, production of the good

A) increases. B) decreases. C) does not change. D) is frozen at the pre-ceiling level. E) either increases or decreases depending on whether the supply of the good increases or decreases when the price ceiling is imposed.

Discrimination by customers creates a wage differential between two groups by creating a difference in the two groups' perceived

A) supply of labor. B) value of marginal product. C) marginal cost of labor. D) minimum wage.