Firms who engage in price discrimination usually make the same amount of money as they would if they charged one price.

The new Keynesians emphasize the importance of

A) rational expectations. B) sticky wages and prices. C) real causes of the business cycle. D) the monetary growth rule.

A characteristic found only in oligopolies is

A) break-even level of profits. B) interdependence of firms. C) independence of firms. D) products that are slightly different.