Endogenous product compatibility choice under Cournot competition with a network externality
We provide a simple model of endogenous product compatibility choice under Cournot competition with a network externality. Using the model, we consider how the degree of a network externality and product substitutability affects the choice regarding product compatibility. In particular, if the degree of the network externality is larger than that of the product substitutability, there exist multiple equilibria, involving imperfect, partial, and perfect compatibility. However, if another assumption formula regarding a spillover effect, which is a component of network size, is made, i.e., the converter case, there is a unique equilibrium, i.e., perfect compatibility, irrespective of the degree of the network effect versus product substitutability. Furthermore, we show that a perfectly compatible product standard is socially optimal and analyze, therefore, whether a social dilemma arises in the network products market.
|Date of creation:||Jan 2014|
|Date of revision:||Jan 2014|
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Web page: http://www-econ.kwansei.ac.jp/~econ/index_e.html
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