Consumers fare worse under a monopoly than under perfect competition because a lower quantity is sold at a higher price in the monopoly market than in a perfectly competitive market

If the required reserve ratio is 0.2, the demand deposit multiplier is

a. 0.2 b. 0.8 c. 1.25 d. 5.0 e. 8.0

You are told that the four-firm concentration ratio in an industry is 20. Based on this information you can conclude that:

A. Each of the top four firms has 20 percent of industry sales B. The four largest firms account for a combined 80 percent of the industry sales C. The four largest firms account for 20 percent of industry sales D. Each of the four largest firms accounts for 5 percent of industry sales