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The term oligopoly indicates: a one-firm industry. many producers of a differentiated product. a few firms producing either a differentiated or a homogeneous product. an industry whose four-firm concentration ratio is low. Answer: CThe mutual interdependence that characterizes oligopoly arises because: the products of various firms are homogeneous. the products of various firms are differentiated. a small number of firms produce a large proportion of industry output. the demand curves of firms are kinked at the prevailing price. Answer: COligopolistic industries: are characterized by a relatively large number of small sellers. may produce either standardized or differentiated products. always produce differentiated products. always produce standardized products. Answer: BAs a general rule, oligopoly exists when the four-firm concentration ratio: exceeds the Herfindahl index. is less than the Herfindahl index.is 40 percent or more.is 15 percent or more. Answer: CThe Herfindahl index for a pure monopolist is: 100. 10,000. 100,000. 10. Answer: BGame theory:is the analysis of how people (or firms) behave in strategic situations.is best suited for analyzing purely competitive markets.reveals that mergers between rival firms are self-defeating.reveals that price-fixing among firms reduces profits.Answer: AUse the following to answer questions 146-151:The above matrix best illustrates:game theory. the principal-agent problem. product differentiation. price discrimination.Answer: ARefer to the above diagram where the numerical data show profits in millions of dollars. Beta's profits are shown in the northeast corner and Alpha's profits in the southwest corner of each cell. If both firms follow a high-price policy: Alpha will realize a $10 million profit and Beta a $30 million profit. each will realize a $20 million profit. Beta will realize a $10 million profit and Alpha a $30 million profit. each will realize a $15 million profit.Answer: BRefer to the above diagram wherein the numerical data show profits in millions of dollars. Beta's profits are shown in the northeast corner and Alpha's profits in the southwest corner of each cell. If Beta commits to a high-price policy, Alpha will gain the largest profit by: also adopting a high-price policy. adopting a low-price policy. adopting a low-price policy, but only if Beta agrees to do the same. engaging in non-price competition only.Answer: BRefer to the above diagram where the numerical data show profits in millions of dollars. Beta's profits are shown in the northeast corner and Alpha's profits in the southwest corner of each cell. With independent pricing the outcome of this duopoly game will gravitate to cell: A. B. C. D. Answer: DRefer to the above diagram where the numerical data show profits in millions of dollars. Beta's profits are shown in the northeast corner and Alpha's profits in the southwest corner of each cell. If Alpha and Beta engage in collusion, the outcome of the game will be at cell: A. B. C. D. Answer: ARefer to the above diagram where the numerical data show profits in millions of dollars. Beta's profits are shown in the northeast corner and Alpha's profits in the southwest corner of each cell. If Alpha and Beta agree to a high-price policy through collusion, the temptation to cheat on that agreement is demonstrated by the fact that: Beta can increase its profit by lowering its price. Beta can increase its profit by increasing its price still further. both Alpha and Beta can earn even more profits if both agree to a low-price policy. Alpha can increase its profit by reducing its production costs.Answer: A ................
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