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2020-03-06Zeitschriftenartikel DOI: 10.18452/23690
Generic regularity of differentiated product oligopolies
dc.contributor.authorZierhut, Michael
dc.date.accessioned2021-11-23T10:18:56Z
dc.date.available2021-11-23T10:18:56Z
dc.date.issued2020-03-06none
dc.identifier.other10.1007/s00199-020-01249-1
dc.identifier.urihttp://edoc.hu-berlin.de/18452/24351
dc.description.abstractIn oligopoly models with differentiated products, producers face a market demand function that reflects the preferences of consumers. However, typical assumptions on preferences place only weak restrictions on the shape of aggregate demand. This may result in profit functions that are not strictly quasiconcave, in best-reply correspondences that are not differentiable, and in equilibria that are not robust to perturbations. This paper establishes differentiability and robustness as a generic property: for an open, dense set of economies, best replies are differentiable in a neighborhood of equilibria, which is a precondition for comparative statics. All these economies have a finite number of equilibria in pure strategies.eng
dc.language.isoengnone
dc.publisherHumboldt-Universität zu Berlin
dc.rights(CC BY 4.0) Attribution 4.0 Internationalger
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectComparative staticseng
dc.subjectImperfect competitioneng
dc.subjectCournot–Walras equilibriumeng
dc.subjectRegular production economyeng
dc.subject.ddc330 Wirtschaftnone
dc.subject.ddc510 Mathematiknone
dc.titleGeneric regularity of differentiated product oligopoliesnone
dc.typearticle
dc.identifier.urnurn:nbn:de:kobv:11-110-18452/24351-3
dc.identifier.doihttp://dx.doi.org/10.18452/23690
dc.type.versionpublishedVersionnone
local.edoc.container-titleEconomic theorynone
local.edoc.pages34none
local.edoc.type-nameZeitschriftenartikel
local.edoc.institutionWirtschaftswissenschaftliche Fakultätnone
local.edoc.container-typeperiodical
local.edoc.container-type-nameZeitschrift
local.edoc.container-publisher-nameSpringernone
local.edoc.container-publisher-placeBerlin, Heidelberg, New Yorknone
local.edoc.container-volume71none
local.edoc.container-issue1none
local.edoc.container-firstpage341none
local.edoc.container-lastpage374none
dc.description.versionPeer Reviewednone
dc.identifier.eissn1432-0479

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