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Cournot competition is an economic model used to describe an industry structure in which companies compete on the amount of output they will produce, which they decide on independently of each other and at the same time. It is named after Antoine Augustin Cournot (1801–1877) who was inspired by observing competition in a spring water duopoly. [1]
As an imperfect competition model, Cournot duopoly (also known as Cournot competition), in which two firms with identical cost functions compete with homogenous products in a static context, is also known as Cournot competition. [1] The Cournot model, shows that two firms assume each other's output and treat this as a fixed amount, and produce ...
Cournot quantity competition, one of the first models of oligopoly markets was developed by Augustin Cournot in 1835. In Cournot’s model, there are two firms and each firm selects a quantity to produce, and the resulting total output determines the market price. [9] Bertrand Price Competition, Joseph Bertrand was the first to analyze this ...
However, alternative assumptions can be made. Suppose you have two firms producing the same good, so that the industry price is determined by the combined output of the two firms (think of the water duopoly in Cournot's original 1838 account). Now suppose that each firm has what is called the "Bertrand Conjecture" of −1.
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.
The accuracy of the predictions of each model will vary from industry to industry, depending on the closeness of each model to the industry situation. If capacity and output can be easily changed, Bertrand is generally a better model of duopoly competition. If output and capacity are difficult to adjust, then Cournot is generally a better model.
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Competition is well defined through the Cournot's model because, when there are infinite many firms in the market, the excess of price over marginal cost will approach to zero. [4] A duopoly is a special form of oligopoly where the market is made up of only two firms.