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								Oligopolymarket structure in which:									 
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								Natural or legal barriers prevent the entry of new firmssmall number of firms competeeither natural or legal barriers to entry can create oligopoly									 
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								Why does an oligopoly have a small number of firms?									 
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								-the firms are interdependent and face a temptation to cooperate									 
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								Interdependence 									 
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								With a small number of firms, each firm's profit depends on every firm's actions									 
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								Cartel									 
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								An illegal group of firms acting together to limit output, raise price, and increase profit									 
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								Kinked Demand CurveFirms believe:									 
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								-if it raises its price, competitors will not follow-if it lowers its price all its competitors will follow-below kink demand is inelastic 									 
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								Collusive Agreement									 
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								An agreement between 2 or more producers to form a cartel to restrict output, raise the price, and increase profits									 
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								Contestable Market									 
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								A market in which firms can enter and leave so easily that firms in the market face competition from potential entrants									 
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								Limit Pricing									 
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								Sets the price at the highest level that inflicts a loss on the entrant									 
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								Anti Trust law									 
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								The law that regulates oligopolies and prevents them from becoming monopolies or behaving like monopolies									 
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								Resale price maintenance									 
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								Occurs when a manufacturer agrees with a distributor on the price at which the product will be resold									 
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								Tying Arrangement									 
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								An agreement to sell one product only if the buyer agrees to buy another different product									 
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								Predatory Pricing									 
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								Setting a low price to drive competitors out of business with the intention of setting a monopoly price when the competition has gone									 
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