A firm's sunk costs are $100,000 and its marginal costs are $250 per unit. It produces 500,000 units and prices it at $400 per unit., How low can price go before the firm decides to shut down?

Which of the following statements correctly describes a perfectly competitive market?

A) In a perfectly competitive market, individual sellers and buyers can influence the market price. B) All participants in a perfectly competitive market are price takers. C) Haggling and bargaining is commonly observed in a perfectly competitive market. D) Buyers in a perfectly competitive market pay different prices according to their individual demand.

Income tax collections:

a. fall during periods of prosperity, thus increase federal budget deficits. b. rise during periods of prosperity, thus reduce federal budget deficits. c. fall during recessions, thus increase the problem of unemployment. d. rise during recessions, thus increase the problem of unemployment.