In the Ricardian model, comparative advantage is likely to be due to

A trade policy that allows a country to gain at the expense of other countries is called

A) countervailing duty policy. B) a beggar-thy-neighbor policy. C) an antitrust policy. D) a dumping policy.

Oligopoly pricing differs from pricing in other market structures. The essential difference is

a. relatively high fixed costs associated with oligopoly b. brand loyalty of consumers c. use and effect of advertising d. difference between concentration ratios and HHI e. mutual interdependence of firms