An example of a market where a Bertrand model would be plausible is the market for

Critics of advertising argue that in some markets advertising may

a. attract products of lower quality into the market. b. attract less informed buyers into the market. c. decrease elasticity of demand allowing firms to charge a larger markup over marginal cost. d. enhance competition in markets to an unnecessary degree.

A study that deals with the salaries of university professors would be considered:

A. real economics B. microeconomics C. macroeconomics D. economic naturalism