Henry Tulkens
Facultés universitaires Saint-Louis
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Publication
Featured researches published by Henry Tulkens.
Journal of Productivity Analysis | 1992
Bernard Thiry; Henry Tulkens
Efficient versus inefficient observations are first identified and evaluated numerically by the nonparametric free disposal hull (FDH) method. Next, parametric production frontiers are obtained by means of estimating translog production functions through OLS applied to the subset of efficient observations only. Technical progress is included at both stages. Monthly data from three urban transit firms in Belgium, to which this two-stage technique is applied, show widely varying degrees of efficiency over time and across firms, and much less technical progress than standard (i.e., non frontier) econometric estimates suggest.
Archive | 1988
Bernard Thiry; Henry Tulkens
Archive | 1998
Marc Germain; Philippe L. Toint; Henry Tulkens; Aart de Zeeuw
Archive | 1994
Marc Germain; Philippe L. Toint; Henry Tulkens
Archive | 2002
Marc Germain; Jean-Pascal van Ypersele de Strihou; Philippe Tulkens; Henry Tulkens
Public Goods, Environmental Externalities and Fiscal Competition | 2006
Marc Germain; Ph. Toint; Henry Tulkens; A.J. de Zeeuw; P. Chander; J. Dreze; K. Lovell; J. Mintz
Archive | 1999
Marc Germain; Philippe L. Toint; Henry Tulkens
Archive | 1999
Marc Germain; Philippe L. Toint; Henry Tulkens
Journal of Productivity Analysis | 1998
Henry Tulkens
Archive | 1988
Bernard Thiry; Henry Tulkens
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