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The model was one of a number that Cournot set out "explicitly and with mathematical precision" in the volume. [4] Specifically, Cournot constructed profit functions for each firm, and then used partial differentiation to construct a function representing a firm's best response for given (exogenous) output levels of the other firm(s) in the ...
In oligopoly theory, conjectural variation is the belief that one firm has an idea about the way its competitors may react if it varies its output or price. The firm forms a conjecture about the variation in the other firm's output that will accompany any change in its own output.
The model was formulated in 1883 by Bertrand in a review of Antoine Augustin Cournot's book Recherches sur les Principes Mathématiques de la Théorie des Richesses (1838) in which Cournot had put forward the Cournot model. [1] Cournot's model argued that each firm should maximise its profit by selecting a quantity level and then adjusting ...
This was a point first raised by Francis Edgeworth [5] and gave rise to the Bertrand–Edgeworth model. Integer pricing. Prices higher than MC are ruled out because one firm can undercut another by an arbitrarily small amount. If prices are discrete (for example have to take integer values) then one firm has to undercut the other by at least ...
The Cournot duopoly model developed in his book also introduced the concept of a (pure strategy) Nash equilibrium, the reaction function and best-response dynamics. Cournot believed that economists must utilize the tools of mathematics only to establish probable limits and to express less stable facts in more absolute terms.
A Cournot equilibrium occurs when each firm's output maximizes its profits given the output of the other firms, which is a pure-strategy Nash equilibrium. Cournot also introduced the concept of best response dynamics in his analysis of the stability of equilibrium. Cournot did not use the idea in any other applications, however, or define it ...
Cournot may refer to: Cournot competition, an economic model of duopoly; Surname. Antoine Augustin Cournot (1801–1877), French philosopher, mathematician and economist; Michel Cournot (1922–2007), French journalist, screenwriter and film director
Any threat by the follower claiming that it will not observe even if it can is as uncredible as those above. This is an example of too much information hurting a player. In Cournot competition, it is the simultaneity of the game (the imperfection of knowledge) that results in neither player (ceteris paribus) being at a disadvantage.