The Herfindahl index would be 5000 if the only two firms in an industry have equal market shares

The best example of a cyclically unemployed individual is

A) Charles who lost his job as a real estate salesperson when the housing market went soft because of a recession. B) Alice who quit her job to enter college. C) Mary who lost her job in the textile industry following a decrease in the tariff on textiles. D) Bob who has just graduated from college and is entering the labor market.

If the marginal tax rate is equal to the average tax rate as taxable income increases, the tax structure is

A) proportional. B) unfair. C) progressive. D) regressive.