Documents disponibles écrits par cet auteur

Assessing pupil and school performance by non-parametric and parametric techniques / K. De Witte in Journal of the operational research society (JORS), Vol. 61 N° 8 (Août 2010) 

Public ISBD [article]  in Journal of the operational research society (JORS) > Vol. 61 N° 8 (Août 2010) . - pp. 1224–1237 Titre : Assessing pupil and school performance by non-parametric and parametric techniques Type de document : texte imprimé Auteurs : K. De Witte, Auteur ; Thanassoulis, E., Auteur ; G. Simpson, Auteur Année de publication : 2011 Article en page(s) : pp. 1224–1237 Note générale : Recherche opérationnelle Langues : Anglais (eng) Mots-clés : Performance  measurement  Free  disposal  hull  Multi-level  modelling  Secondary  education Index. décimale : 001.424 Résumé : This paper discusses the use of the non-parametric free disposal hull (FDH) and the parametric multi-level model (MLM) as alternative methods for measuring pupil and school attainment where hierarchical structured data are available. Using robust FDH estimates, we show how to decompose the overall inefficiency of a unit (a pupil) into a unit specific and a higher level (a school) component. By a sample of entry and exit attainments of 3017 girls in British ordinary single sex schools, we test the robustness of the non-parametric and parametric estimates. Finally, the paper uses the traditional MLM model in a best practice framework so that pupil and school efficiencies can be computed. DEWEY : 001.424 ISSN : 0361-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v61/n8/abs/jors200950a.html [article] Assessing pupil and school performance by non-parametric and parametric techniques [texte imprimé] / K. De Witte, Auteur ; Thanassoulis, E., Auteur ; G. Simpson, Auteur . - 2011 . - pp. 1224–1237. Recherche opérationnelle Langues : Anglais (eng) in Journal of the operational research society (JORS) > Vol. 61 N° 8 (Août 2010) . - pp. 1224–1237 Mots-clés : Performance  measurement  Free  disposal  hull  Multi-level  modelling  Secondary  education Index. décimale : 001.424 Résumé : This paper discusses the use of the non-parametric free disposal hull (FDH) and the parametric multi-level model (MLM) as alternative methods for measuring pupil and school attainment where hierarchical structured data are available. Using robust FDH estimates, we show how to decompose the overall inefficiency of a unit (a pupil) into a unit specific and a higher level (a school) component. By a sample of entry and exit attainments of 3017 girls in British ordinary single sex schools, we test the robustness of the non-parametric and parametric estimates. Finally, the paper uses the traditional MLM model in a best practice framework so that pupil and school efficiencies can be computed. DEWEY : 001.424 ISSN : 0361-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v61/n8/abs/jors200950a.html

Mean and bold? On separating merger economies from structural efficiency gains in the drinking water sector / K. De Witte in Journal of the operational research society (JORS), Vol. 61 N° 2 (Fevrier 2010) 

Public ISBD [article]  in Journal of the operational research society (JORS) > Vol. 61 N° 2 (Fevrier 2010) . - pp. 222–234 Titre : Mean and bold? On separating merger economies from structural efficiency gains in the drinking water sector Type de document : texte imprimé Auteurs : K. De Witte, Auteur ; E. Dijkgraaf, Auteur Année de publication : 2011 Article en page(s) : pp. 222–234 Note générale : Recherche opérationnelle Langues : Anglais (eng) Mots-clés : Mergers  and  acquisitions  Efficiency  Scale  economies  Water  sector  Nonparametric  and  parametric  estimation Index. décimale : 001.424 Résumé : The Dutch drinking water sector experienced two drastic changes over the last 10 years. Firstly, the sector association started a voluntary benchmarking aimed to increase the efficiency and effectiveness of the sector. Secondly, merger activity arose. This paper develops a nonparametric model to dissect and distinguish the effects on efficiency of these evolutions. Parametric corrected ordinarily least squares (Fourier) tests show the robustness of the model with respect to the specification and its variables. Although detecting an efficiency enhancing effect of benchmarking, we find insignificant merger economies due to the absence of scale economies and the absence of increased incentives to fight inefficiencies. DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v61/n2/abs/jors2008129a.html [article] Mean and bold? On separating merger economies from structural efficiency gains in the drinking water sector [texte imprimé] / K. De Witte, Auteur ; E. Dijkgraaf, Auteur . - 2011 . - pp. 222–234. Recherche opérationnelle Langues : Anglais (eng) in Journal of the operational research society (JORS) > Vol. 61 N° 2 (Fevrier 2010) . - pp. 222–234 Mots-clés : Mergers  and  acquisitions  Efficiency  Scale  economies  Water  sector  Nonparametric  and  parametric  estimation Index. décimale : 001.424 Résumé : The Dutch drinking water sector experienced two drastic changes over the last 10 years. Firstly, the sector association started a voluntary benchmarking aimed to increase the efficiency and effectiveness of the sector. Secondly, merger activity arose. This paper develops a nonparametric model to dissect and distinguish the effects on efficiency of these evolutions. Parametric corrected ordinarily least squares (Fourier) tests show the robustness of the model with respect to the specification and its variables. Although detecting an efficiency enhancing effect of benchmarking, we find insignificant merger economies due to the absence of scale economies and the absence of increased incentives to fight inefficiencies. DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v61/n2/abs/jors2008129a.html