Suppose you purchased 100 shares of stock in 2010 for $25 a share and you sell them today for $50 a share. If the capital gains tax is 28 percent, your tax liability is

Privatizing a commons gives the person who owns it an incentive to

A) exploit the resource until it is depleted. B) restrict it from being used at all. C) manage it carefully. D) make it available to everyone without restriction.

The table above shows sales of the firms in the pet food industry. The four-firm concentration ratio in the industry is

A) 59 percent. B) 80 percent. C) 70 percent. D) 40 percent.