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dc.contributor.authorHeger, Dianaen
dc.contributor.authorKraft, Korneliusen
dc.date.accessioned2009-08-12T07:19:09Z-
dc.date.available2009-08-12T07:19:09Z-
dc.date.issued2008-
dc.identifier.urihttp://hdl.handle.net/10419/27550-
dc.description.abstractTheory predicts a positive relationship between market concentration and profitability in most scenarios. In empirical work, however, this relation is frequently not found or only a weak connection is observed. We compare the performance of concentration and market share variables, which are generated on the basis of the official industry classification, with information collected directly from firms. Information from companies on the number of competitors, their relative size and the intensity of price competition is highly significant in explaining profit levels, while none of the concentration indices performs well. Hence, the poor quality of industry data is responsible for the loose connection that is usually found between concentration and profitability.en
dc.language.isoengen
dc.publisher|aZentrum für Europäische Wirtschaftsforschung (ZEW) |cMannheimen
dc.relation.ispartofseries|aZEW Discussion Papers |x08-072en
dc.subject.jelL25en
dc.subject.jelL13en
dc.subject.jelC25en
dc.subject.ddc330en
dc.subject.keywordConcentration Indicesen
dc.subject.keywordProfitabilityen
dc.subject.keywordDiscrete Regression Modelsen
dc.subject.stwWirtschaftskonzentrationen
dc.subject.stwRentabilitäten
dc.subject.stwKonzentrationsindexen
dc.subject.stwMarktstrukturen
dc.subject.stwBefragungen
dc.subject.stwStatistik der Unternehmen und Arbeitsstättenen
dc.subject.stwStatistischer Fehleren
dc.subject.stwSchätzungen
dc.subject.stwDeutschlanden
dc.titleA Test of the Quality of Concentration Indices-
dc.typeWorking Paperen
dc.identifier.ppn57790874Xen
dc.rightshttp://www.econstor.eu/dspace/Nutzungsbedingungenen
dc.identifier.repecRePEc:zbw:zewdip:7415en

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