The significance of the corporate income tax as a percentage of federal revenues has _____

Buyers are able to buy all they want to buy and sellers are able to sell all they want to sell at a. prices at and above the equilibrium price

b. prices at and below the equilibrium price. c. prices above and below the equilibrium price, but not at the equilibrium price. d. the equilibrium price but not above or below the equilibrium price.

Monopolistic competition is an

a. efficient market structure because long-run profits are zero. b. efficient market structure because each firm produces at its efficient scale. c. inefficient market structure because there is deadweight loss. d. Both a and b are correct.