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2018 | OriginalPaper | Buchkapitel

Equilibrium and Inefficiency in Multi-product Cournot Games

verfasst von : Mohit Hota, Sanjiv Kapoor

Erschienen in: Web and Internet Economics

Verlag: Springer International Publishing

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Abstract

We consider multi-product (m products) Cournot games played by n firms where products are substitutable goods. Such games can arise in network markets and in general is motivated by markets with differentiated goods and differing producer costs that can be arbitrary, especially due to subsidies. We provide strongly polynomial algorithms for computing the Nash equilibrium for Cournot games with quadratic utility functions. To study the inefficiency, we provide a characterization of Nash equilibrium in multi-product oligopolies with concave utilities and uniform substitutability in terms of games with quadratic utilities. We show that the Price of Anarchy in these games is bounded below by 2/3.

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Metadaten
Titel
Equilibrium and Inefficiency in Multi-product Cournot Games
verfasst von
Mohit Hota
Sanjiv Kapoor
Copyright-Jahr
2018
DOI
https://doi.org/10.1007/978-3-030-04612-5_14