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Do market share and efficiency matter for each other? / J-L. Hu in Journal of the operational research society (JORS), Vol. 61 N° 4 (Avril 2010) 

Public ISBD [article]  in Journal of the operational research society (JORS) > Vol. 61 N° 4 (Avril 2010) . - pp. 647–657 Titre : Do market share and efficiency matter for each other? : an application of the zero-sum gains data envelopment analysis Type de document : texte imprimé Auteurs : J-L. Hu, Auteur ; C-Y. Fang, Auteur Année de publication : 2010 Article en page(s) : pp. 647–657 Note générale : Recherche opérationnelle Langues : Anglais (eng) Mots-clés : Zero-sum  gains  data  envelopment  analysis  (ZSG-DEA)  Panel  data  Two-stage  least  squares  procedure  (2SLS) Index. décimale : 001.424 Résumé : Current studies that use traditional data envelopment analysis (DEA) neglect the 100% market share restriction. This study adopts zero-sum gains data envelopment analysis to measure the efficiency scores of securities firms (SFs) and indicates that the traditional DEA model underestimates the efficiency scores of inefficient SFs. This research analyses 266 integrated securities firms in Taiwan from 2001 to 2005 and employs three inputs (fixed assets, financial capital, and general expenses) and a single output (market share). The foreign-affiliated ownership of SFs positively affects the efficiency scores. The two-stage least squares procedure confirms that the market share and efficiency score simultaneously reinforce each other. DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v61/n4/abs/jors200911a.html [article] Do market share and efficiency matter for each other? : an application of the zero-sum gains data envelopment analysis [texte imprimé] / J-L. Hu, Auteur ; C-Y. Fang, Auteur . - 2010 . - pp. 647–657. Recherche opérationnelle Langues : Anglais (eng) in Journal of the operational research society (JORS) > Vol. 61 N° 4 (Avril 2010) . - pp. 647–657 Mots-clés : Zero-sum  gains  data  envelopment  analysis  (ZSG-DEA)  Panel  data  Two-stage  least  squares  procedure  (2SLS) Index. décimale : 001.424 Résumé : Current studies that use traditional data envelopment analysis (DEA) neglect the 100% market share restriction. This study adopts zero-sum gains data envelopment analysis to measure the efficiency scores of securities firms (SFs) and indicates that the traditional DEA model underestimates the efficiency scores of inefficient SFs. This research analyses 266 integrated securities firms in Taiwan from 2001 to 2005 and employs three inputs (fixed assets, financial capital, and general expenses) and a single output (market share). The foreign-affiliated ownership of SFs positively affects the efficiency scores. The two-stage least squares procedure confirms that the market share and efficiency score simultaneously reinforce each other. DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v61/n4/abs/jors200911a.html