Which of the following variants of oligopoly theory assume that there is no collusion between firms?

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Both the price leadership and the kinked-demand curve variants of oligopoly theory assume that there is no collusion between firms. Price leadership occurs when one firm sets its prices and other firms in the industry follow suit, independently. The kinked-demand curve model suggests that firms will not change their pricing strategies because of the asymmetric response to price changes, assuming independent decision-making rather than collusion.

Which of the Following Variants of Oligopoly Theory Assume That