Oligopoly differs from perfect competition and monopolistic competition in that A) barriers to entry are lower in oligopoly industries than they are in perfectly competitive and monopolistically competitive industries. B) demand and marginal revenue curves are more useful for analyzing oligopoly than they are for analyzing perfect competition and monopolistic competition.

Which one of the following best describes pro forma financial statements? select one: a. financial statements expressed in a foreign currency b. financial statements where the assets are expressed as a percentage of total assets and costs are expressed as a percentage of sales c. financial statements showing projected values for future time periods d. financial statements expressed in real dollars, given a stated base year e. financial statements where all accounts are expressed as a percentage of last year's values