On the regularity of smooth production economies with externalities: Competitive equilibrium à la Nash

Abstract : We consider a general equilibrium model of a private ownership economy with consumption and production externalities. The choices of all agents (households and firms) may affect utility functions and production technologies. The allocation of a competitive equilibrium is a Nash equilibrium. We provide an example showing that, under standard assumptions, competitive equilibria are indeterminate in an open set of the household's endowments. We introduce the model with firms' endowments, in the spirit of Geanakoplos, Magill, Quinzii and Drèze (1990). In our model, firms' endowments impact the technologies and the marginal productivities of the other firms. We then prove that these economies are generically regular in the space of endowments of households and firms.
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Documents de travail du Centre d'Economie de la Sorbonne 2015.44R - ISSN : 1955-611X. Version o.. 2016
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Elena L. Del Mercato, Vincenzo Platino. On the regularity of smooth production economies with externalities: Competitive equilibrium à la Nash. Documents de travail du Centre d'Economie de la Sorbonne 2015.44R - ISSN : 1955-611X. Version o.. 2016. 〈halshs-01162039v2〉

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