Date : 07.12.98 (jj.mm.aa)
Léopold Simar
Professor of Statistics and Chairman of the Institute of Statistics
- Address
- c/o Institut de Statistique, UCL
- Voie du Roman Pays 20
- B1348 Louvain-la-Neuve, Belgium
- telephone (office): +32-10-474308
- electronic mail: <simar@stat.ucl.ac.be>
Current affiliations
- Institut de Statistique, Université Catholique de Louvain
- CORE (Center for Operations Research and Econometrics), Université Catholique de Louvain, Voie du Roman Pays 34, B1348 Louvain-la-Neuve, Belgique
- Facultés Universitaires Saint-Louis, Boulevard du Jardin Botanique 43, 1000 Bruxelles, Belgique
Interest
- mathematical statistics, multivariate statistics and data analysis, semi- and non-parametric statistics, bootstrap and resampling techniques
- econometrics, frontier estimation and estimation of boundaries of a density
Recent Discussion Papers and Publications
- Simar, L. (1992), "Estimating Efficiencies from Frontier Models with Panel Data : a Comparison of Parametric, Non-parametric and Semi-Parametric Methods with Bootstrapping", Journal of Productivity Analysis, 3, 167-203.
- Härdle, W. and L. Simar, (1993), Eds., Computer Intensive Methods in Statistics, Proceedings of the 12th Franco-Belgian Meeting of Statisticians, in Statistics and Computing, vol 1, Physica Verlag.
- Hall, P., Härdle, W. and L. Simar (1993), "On the Inconsistency of Bootstrap Distribution Estimators", Computational Statistics and Data Analysis, 16, 11-18.
- Park, B., Sickles R.C. and L. Simar (1993), "Stochastic Frontiers : A Semiparametric Approach" Discussion paper 9303, Institut de Statistique, UCL.
- Ritter, C. and L. Simar (1994) : "Another look at the American electrical utility data, and corection of results of Greene (1990)", Discussion paper 9401, Institut de Statistique, UCL and CORE Discussion paper, UCL.
- Simar, L., C.A. Knox Lovell and Ph. Vanden Eeckaut (1994) : "Stochastic frontiers incorporating exogenous influences on efficiency", Discussion paper 9403, Institut de Statistique, UCL and CORE Discussion paper, UCL.
- Park, B. and L. Simar (1994), "Efficient Semiparametric Estimation in Stochastic Frontier Model", Journal of the American Statistical Association., vol 89, 427, p929-936.
- Rolin, J.M. and L. Simar (1995), Discussion on "Testing for Mixtures : A Bayesian Entropic Approach" by Mengersen, K.L. and Ch. Robert, in Bayesian Statistics V, Proceedings of the 5th International Meeting on Bayesian Statistics, Valencia.
- Korostelev, A., Simar, L. and A. Tsybakov (1995), "Efficient Estimation of Monotone Boundaries", The Annals of Statistics, 23(2), 476-489.
- Hall, P., Härdle, W. and L. Simar (1995), "Iterated Bootstrap with Application to Frontier Models", The Journal of Productivity Analysis, 6, p63-76.
- Korostelev, A., Simar, L. and A. Tsybakov (1995) : "On Estimation of Monotone and Convex Boundaries", Publications de l'Inst. Stat. Univ. Paris , 1, 3-18.
- Wilson, P. and L. Simar (1995) : "Bootstrap Estimation for Nonparametric Efficiency Estimates", Discussion paper 9517, Institut de Statistique, UCL and CORE, UCL.
- Simar, L. (1996) : "Aspects of Statistical Analysis in DEA-type Frontier Models", The Journal of Productivity Analysis, 7, p 177-185.
- Kneip, A. and L. Simar (1996): "A General framework for Frontier Estimation with Panel data", The Journal of Productivity Analysis, 7, p 187-212.
- Simar, L. and P. Wilson (1996) : "Estimating and Bootstrapping Malmquist Indices", Discussion paper 9613. Institut de Statistique, UCL and CORE, UCL, forthcoming in the European Journal of Operational Research.
- Gijbels, I., E. Mammen, B.U. Park and L. Simar (1996) : "On Estimation of Monotone and Concave Frontier Functions", Discussion paper 9611, Institut de Statistique, UCL, forthcoming in Journal of the American Statistical Association.
- Simar, L. and P. Wilson (1997) : "Some Problems with the Ferrier/Hirschberg Bootstrap Idea", Discussion paper 9712, Institut de Statistique, UCL, forthcoming in The Journal of Productivity Analysis.
- Ritter, C. and L. Simar (1997) : "Pitfalls of normal-gamma stochastic frontier models", The Journal of Productivity Analysis, 8, 167-182.
- Park, B. Simar, L. and Ch. Weiner (1997) : "FDH efficiency scores from a stochastic point of view", Discussion paper 9715, Institut de Statistique, UCL, under revision for Econometric Theory.
- Simar, L. and P. Wilson (1998) : "Sensitivity of efficiency scores : How to bootstrap in Nonparametric frontier models", Management Sciences, 44, 1, 49-61.
- Park, B., Sickles R.C. and L. Simar (1998), "Stochastic Panel Frontiers : A Semiparametric Approach", Journal of Econometrics, 84, 273-301.
- Kneip, A., B. Park and L. Simar (1998) : "A Note on the Convergence of Nonparametric DEA Estimators for Production Efficiency Scores", Econometric Theory, 14, 783-793.
- Simar L. and P. Wilson (1998) : "Productivity Growth in Industrialized Countries", Discussion paper 9810, Institut de Statistique, UCL and CORE, UCL, submitted to American Economic Review.
- Simar L. and P. Wilson (1998) : "A General Methodology for Bootstrapping in Nonparametric Frontier Models", Discussion paper 9811, Institut de Statistique, UCL and CORE, UCL, submitted to Journal of Applied Statistics.
- Simar L. and P. Wilson (1998) : "Nonparametric Test of Return to Scale", Discussion paper 9814, Institut de Statistique, UCL and CORE, UCL, submitted to Journal of Statistical Computations and Simulation.
- Simar L. (1998) : "Le Paradigme Bayésien", à paraître dans Méthodes Bayésiennes en Statistique, J.J. Droesbeke, J. Fine, G. Saporta, eds., Edition Technip, Paris.
- Simar L. (1998) : "Les Modèles de Base de l'Analyse Bayésienne", à paraître dans Méthodes Bayésiennes en Statistique, J.J. Droesbeke, J. Fine, G. Saporta, eds., Edition Technip, Paris.
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