As the price of video games is raised from $40 to $45, their quantity demanded fell from 1.5 million copies to 1.2 million copies. The elasticity of demand of video games is:

Which of the following statements is(are) correct

a. As a result of the Great Depression of the 1930s, the quantity theory had come into disrepute, together with the rest of the classical theories. b. According to Friedman, the depression was caused by a fall in aggregate supply and not aggregate demand as believed by the Keynesians. c. As a result of the Great Depression of the 1930s, Friedman believed that the Keynesians had nothing to say about money demand. d. All of the above e. both b and c.

As an apparent result of airline deregulation,

A. many small communities have been left without airline service. B. the wages and benefits of airline workers have been reduced. C. air fares have risen more quickly than they probably would have under continued regulation. D. small commuter airlines have almost vanished.