Léopold Simar

Léopold Simar's AcademicInfluence.com Rankings

Léopold Simar

Economics

#2665

World Rank

#3037

Historical Rank

Econometrics

#66

World Rank

#68

Historical Rank

economics Degrees

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Economics

Léopold Simar's Degrees

PhD Economics Université catholique de Louvain
Masters Economics Université catholique de Louvain

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Léopold Simar's Published Works

Number of citations in a given year to any of this author's works

Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author

Published Works

Estimation and inference in two-stage, semi-parametric models of production processes (2007) (3021)
Sensitivity Analysis of Efficiency Scores: How to Bootstrap in Nonparametric Frontier Models (1998) (2089)
Statistical Inference in Nonparametric Frontier Models: The State of the Art (1999) (1135)
A general methodology for bootstrapping in non-parametric frontier models (2000) (1130)
Nonparametric frontier estimation: a robust approach (2002) (1030)
Applied Multivariate Statistical Analysis (2003) (794)
Advanced Robust and Nonparametric Methods in Efficiency Analysis: Methodology and Applications (2007) (784)
Measuring Labor-Efficiency in Post Offices (2006) (744)
Introducing Environmental Variables in Nonparametric Frontier Models: a Probabilistic Approach (2005) (671)
Two-stage DEA: caveat emptor (2011) (621)
Estimating and bootstrapping Malmquist indices (1999) (552)
Applied Multivariate Statistical Analysis: third edition (2006) (434)
Non-parametric tests of returns to scale (2002) (408)
Conditional nonparametric frontier models for convex and nonconvex technologies: a unifying approach (2007) (367)
Detecting Outliers in Frontier Models: A Simple Approach (2003) (361)
Computer Intensive Methods in Statistics (1994) (339)
Estimation and Inference in Nonparametric Frontier Models: Recent Developments and Perspectives (2013) (310)
Nonparametric efficiency analysis: a multivariate conditional quantile approach (2007) (293)
Estimating efficiencies from frontier models with panel data: A comparison of parametric, non-parametric and semi-parametric methods with bootstrapping (1992) (273)
How to measure the impact of environmental factors in a nonparametric production model (2012) (270)
Nonparametric stochastic frontiers: A local maximum likelihood approach (2007) (239)
On Testing Equality of Distributions of Technical Efficiency Scores (2006) (236)
On estimation of monotone and concave frontier functions (1999) (233)
Optimal bandwidth selection for conditional efficiency measures: A data-driven approach (2010) (229)
Efficient Estimation of Monotone Boundaries (1995) (223)
THE FDH ESTIMATOR FOR PRODUCTIVITY EFFICIENCY SCORES (2000) (215)
Pitfalls of Normal-Gamma Stochastic Frontier Models (1997) (191)
Advanced indicators of productivity of universitiesAn application of robust nonparametric methods to Italian data (2006) (190)
Maximum Likelihood Estimation of a Compound Poisson Process (1976) (189)
Explaining inefficiency in nonparametric production models: the state of the art (2014) (166)
Statistical Approaches for Non‐parametric Frontier Models: A Guided Tour (2015) (166)
Central Limit Theorems for Conditional Efficiency Measures and Tests of the ‘Separability’ Condition in Non�?Parametric, Two�?Stage Models of Production (2018) (159)
A robust nonparametric approach to evaluate and explain the performance of mutual funds (2006) (153)
Inference by the m out of n bootstrap in nonparametric frontier models (2011) (153)
Nonparametric conditional efficiency measures: asymptotic properties (2010) (153)
Stochastic FDH/DEA estimators for frontier analysis (2008) (142)
The European university landscape: A micro characterization based on evidence from the Aquameth project (2011) (135)
A general framework for frontier estimation with panel data (1996) (122)
Effect of FDI and Time on Catching Up: New Insights from a Conditional Nonparametric Frontier Analysis (2015) (121)
Efficient Semiparametric Estimation in a Stochastic Frontier Model (1994) (120)
On estimation of monotone and convex boundaries (1995) (120)
Probabilistic characterization of directional distances and their robust versions (2012) (119)
Rankings and university performance: A conditional multidimensional approach (2015) (119)
Stochastic panel frontiers: A semiparametric approach☆ (1998) (117)
Aspects of statistical analysis in DEA-type frontier models (1996) (115)
Of Course We Can Bootstrap DEA Scores! But Does It Mean Anything? Logic Trumps Wishful Thinking (1999) (115)
Directional distances and their robust versions: Computational and testing issues (2013) (115)
TESTING RESTRICTIONS IN NONPARAMETRIC EFFICIENCY MODELS (2001) (114)
Performance of the Bootstrap for DEA Estimators and Iterating the Principle (2011) (113)
Inferences from Cross-Sectional, Stochastic Frontier Models (2009) (111)
Estimating a Changepoint, Boundary, or Frontier in the Presence of Observation Error (2002) (110)
How to improve the performances of DEA/FDH estimators in the presence of noise? (2007) (109)
Statistical inference for aggregates of Farrell-type efficiencies (2007) (108)
A Note on the Convergence of Nonparametric DEA Efficiency Measures (1996) (104)
Statistical inference for DEA estimators of directional distances (2012) (99)
Asymptotics for DEA estimators in non-parametric frontier models (2003) (99)
Testing Hypotheses in Nonparametric Models of Production (2016) (93)
Productivity Growth in Industrialized Countries (1998) (78)
ASYMPTOTIC DISTRIBUTION OF CONICAL-HULL ESTIMATORS OF DIRECTIONAL EDGES (2010) (78)
A Computationally Efficient, Consistent Bootstrap for Inference with Non-parametric DEA Estimators (2011) (78)
WHEN BIAS KILLS THE VARIANCE: CENTRAL LIMIT THEOREMS FOR DEA AND FDH EFFICIENCY SCORES (2014) (78)
Testing whether two-stage estimation is meaningful in non-parametric models of production (2010) (72)
Semiparametric efficient estimation of dynamic panel data models (2007) (72)
Semiparametric efficient estimation of AR(1) panel data models. (2003) (72)
Some Problems with the Ferrier/Hirschberg Bootstrap Idea (1997) (72)
Local likelihood estimation of truncated regression and its partial derivatives: theory and application (2008) (72)
Stochastic frontiers incorporating exogenous influences on efficiency (1994) (70)
Parametric approximations of nonparametric frontiers (2005) (68)
Linearly interpolated FDH efficiency score for nonconvex frontiers (2006) (65)
ESTIMATING TECHNICAL INEFFICIENCIES WITH CORRECTION FOR ENVIRONMENTAL CONDITIONS (1989) (58)
Frontier estimation and extreme values theory (2010) (56)
Nonparametric least squares methods for stochastic frontier models (2017) (52)
Robust nonparametric estimators of monotone boundaries (2005) (52)
Efficiency and benchmarking with directional distances: a data-driven approach (2016) (51)
Iterated bootstrap with applications to frontier models (1995) (51)
FDH Efficiency Scores from a Stochastic Point of View (1997) (49)
Efficiency and economies of scale and specialization in European universities: A directional distance approach (2015) (48)
Unobserved heterogeneity and endogeneity in nonparametric frontier estimation (2016) (46)
The “wrong skewness” problem in stochastic frontier models: A new approach (2018) (45)
A bootstrap approach for bandwidth selection in estimating conditional efficiency measures (2019) (41)
Decomposing Regional Efficiency (2011) (39)
Regularization of Nonparametric Frontier Estimators (2012) (39)
Efficiency and productivity in European Universities. Exploring trade-offs in the strategic profile (2007) (37)
Frontier estimation in nonparametric location-scale models (2014) (36)
Hypothesis testing in nonparametric models of production using multiple sample splits (2020) (34)
Measuring firm performance using nonparametric quantile-type distances (2017) (32)
Frontier estimation in the presence of measurement error with unknown variance (2015) (32)
A fully nonparametric stochastic frontier model for panel data (2005) (31)
Estimation and inference in cross-sectional, stochastic frontier models (2005) (29)
Categorical data in local maximum likelihood: theory and applications to productivity analysis (2015) (29)
Testing the "Separability" Condition in Two-Stage Nonparametric Models of Production (2015) (28)
Stochastic Frontiers: A Semiparametric Approach (1993) (28)
Generalized nonparametric smoothing with mixed discrete and continuous data (2016) (28)
On the inconsistency of bootstrap distribution estimators (1993) (28)
Central Limit Theorems for Aggregate Efficiency (2017) (27)
Nonparametric instrumental variables estimation for efficiency frontier (2016) (27)
Fast and efficient computation of directional distance estimators (2019) (27)
Forecasting the Malmquist productivity index (2008) (24)
Globalization and productivity: A robust nonparametric world frontier analysis (2017) (24)
Canonical Correlation Analysis (2019) (24)
Functional convergence of quantile-type frontiers with application to parametric approximations (2008) (22)
Innovation and export activities in the German mechanical engineering sector: an application of testing restrictions in production analysis (2011) (22)
A BIAS-CORRECTED NONPARAMETRIC ENVELOPMENT ESTIMATOR OF FRONTIERS (2009) (20)
Efficiency and University Size: Discipline-wise Evidence from European Universities (2007) (18)
A General Methodology for Bootstraping in Nonparametric Frontier Models (1998) (17)
INFERENCE IN DYNAMIC, NONPARAMETRIC MODELS OF PRODUCTION: CENTRAL LIMIT THEOREMS FOR MALMQUIST INDICES (2020) (17)
Analysis of the Expenses Linked to Hospital Stays: How to Detect Outliers (2004) (16)
Technical, allocative and overall efficiency: Estimation and inference (2020) (16)
Nonparametric estimation of dynamic discrete choice models for time series data (2017) (16)
Central limit theorems and inference for sources of productivity change measured by nonparametric Malmquist indices (2019) (15)
Improving finite sample approximation by central limit theorems for estimates from Data Envelopment Analysis (2020) (14)
Nonparametric tests for conditional independence in two-way contingency tables (2010) (13)
Portfolio selection in a multi-moment setting: A simple Monte-Carlo-FDH algorithm (2017) (13)
Bootstrap Estimation for Nonparametric Efficiency Estimates (1995) (12)
Theory of Estimation (2019) (12)
Nonparametric Estimation of Efficiency in the Presence of Environmental Variables (2016) (12)
Inference by subsampling in nonparametric frontier models (2009) (12)
Efficiency and economies of scale and scope in European universities. A directional distance approach (2014) (11)
Latent heterogeneity to evaluate the effect of human capital on world technology frontier (2021) (10)
Discussion on 'Testing for Mixtures : A Bayesian Entropic Approach' by Mengersen, K.L. and Ch. Robert (1996) (9)
Automatic Smoothing and Estimation in Single Index Poisson Regression (2002) (8)
Boundary estimation in the presence of measurement error with unknown variance (2010) (8)
Another look at the American electrical utility data (1994) (8)
Semiparametric estimation in single index Poisson regression: A practical approach (2002) (8)
Least squares approximation in Bayesian analysis (1980) (7)
Gender effect on microfinance social efficiency: A robust nonparametric approach (2021) (7)
Local maximum likelihood techniques with categorical data (2010) (7)
Quality as a latent heterogeneity factor in the efficiency of universities (2021) (7)
On the comparability of efficiency scores in nonparametric frontier models (2003) (6)
To Smooth or Not to Smooth? The Case of Discrete Variables in Nonparametric Regressions (2011) (6)
Specifying Statistical Models (1983) (6)
Alternative Approaches to Time Series Analysis (1985) (6)
Robust frontier estimation from noisy data: A Tikhonov regularization approach (2020) (6)
Cross-Section Dependence and Latent Heterogeneity to Evaluate the Impact of Human Capital on Country Performance (2017) (6)
A survey of Bayesian approaches to nonparametric statistics (1984) (5)
A Note on Least‐Squares Approximation in the Bayesian Analysis of Regression Models (1984) (5)
Introduction for Journal of Productivity Analysis special issue on transitioning economics (2008) (5)
Estimation of the Boundary of a Variable Observed With Symmetric Error (2019) (5)
Conjoint Measurement Analysis (2015) (5)
Confidence intervals for DEA-type efficiency scores: how to avoid the computational burden of the bootstrap (2003) (5)
A note on the asymptotic relative efficiency of M.L.E. in a linear model with Gamma disturbances (1985) (5)
Scale and research specialization in European universities: a directional distance approach to teaching efficiency (2014) (5)
Theory and Methodology Estimating and bootstrapping Malmquist indices 1 (1999) (5)
Estimation of monotone boundaries (1995) (5)
ROBUSTIFIED EXPECTED MAXIMUM PRODUCTION FRONTIERS (2020) (4)
Protecting Against Gross Errors : The Aid of Bayesian Methods (1983) (4)
The three Is of public schools: irrelevant inputs, insufficient resources and inefficiency (2017) (4)
Quality and its Impact on Efficiency (2019) (4)
Nonparametric, Stochastic Frontier Models with Multiple Inputs and Outputs (2022) (4)
Principal Components Analysis (2018) (4)
Single-index modelling of conditional probabilities in two-way contingency tables (2011) (3)
Specifying statistical models, from parametric to non parametric model,Using Bayesian or Non-Bayesian Approaches (1984) (3)
What is the impact of scale and specialization on the research efficiency of European universities (2013) (3)
Nonparametric test for conditional independence in two-way contingency tables (2008) (3)
Corrigendum to "Semiparametric-efficient estimation of AR(1) panel data models": [J. Econom. 117 (2003) 279-309] (2003) (3)
Forecasting of recessions via dynamic probit for time series: replication and extension of Kauppi and Saikkonen (2008) (2019) (3)
Theory and Applications of Least Squares Approximation in Bayesian Analysis (1983) (2)
Statistical Inference for Aggregation of Malmquist Productivity Indices (2019) (2)
Predicting recessions with a frontier measure of output gap: an application to Italian economy (2021) (2)
Technical, Allocative and Overall Efficiency: Inference and Hypothesis Testing (2018) (2)
Computationally Intensive Techniques (2012) (2)
Data sharpening for improving central limit theorem approximations for data envelopment analysis-type efficiency estimators (2022) (2)
Applications in Finance (2019) (2)
A MOLLIFIER APPROACH TO THE DECONVOLUTION OF PROBABILITY DENSITIES (2022) (1)
Symbols and Notations (2019) (1)
Portfolio Selection in a Multi-Input Multi-Output Setting: a Simple Monte-Carlo-FDH Algorithm (2016) (1)
Nonparametric Frontier estimation : A Multivariate Conditional Quantile Approach (2005) (1)
Forecasting of recessions via dynamic probit for time series: replication and extension of Kauppi and Saikkonen (2008) (2019) (1)
Moving to Higher Dimensions (2019) (1)
Improving Finite Sample Approximation by Central Limit Theorems for DEA and FDH efficiency scores (2018) (1)
ASYMMETRIES IN BUSINESS CYCLES AND THE ROLE OF OIL PRICES (2017) (1)
Asymmetries in Business Cycles and the Role of Oil Production (2011) (1)
Spatial processes and spatial time series analysis : proceedings of the 6th Franco-Belgian Meeting of Statisticians, November 1985 (1987) (1)
Nonparametric Robust Stochastic Frontier Analysis: a Tikhonov Regularization Approach (2014) (1)
Global Dependence and Productivity: A Robust Nonparametric World Frontier Analysis (2014) (1)
Alternative Approaches to Time Series Analysis : Proceedings of the 3rd Franco-Belgian Meeting of Statisticians (1984) (1)
Least Squares Approximations in Bayesian Analysis, with discussion, in Bayesian Statistics (1980) (1)
Nonparametric Discrete Choice Models for Time Series : Theory and Application to Predicting Recessions (2014) (0)
Correspondence Analysis (2019) (0)
ffi cient Estimation of AR ( 1 ) Panel Data Models ∗ (2003) (0)
1 Frontier Models , Basic Notations 1 (2008) (0)
CondEff Toolbox for Conditional Efficiency Measurement (2014) (0)
CondEff Toolbox: Bandwidth Selection Methods for Conditional Efficiency Measurement (2014) (0)
Improving Statistical Inference and Bootstrapping in Conditional Nonparametric Frontier Models (2008) (0)
Centre for Efficiency and Productivity Analysis Working Paper Series No . WP 0 9 / 20 18 Forecasting of Recessions via Dynamic Probit for Time Series : Replication and Extension of Kauppi and Saikkonen (2018) (0)
Fast and efficient computation of directional distance estimators (2019) (0)
Bayesian Prediction : Nonparametric Methods and Least Squares Approximations (1984) (0)
Theory of the Multinormal (2015) (0)
Appendix B: Data (2012) (0)
Hypothesis testing in nonparametric models of production using multiple sample splits (2020) (0)
Detecting too long hospital stays : comparison of nonparametric and parametric frontier approaches. (2001) (0)
Nonparametric least squares methods for stochastic frontier models (2016) (0)
Decomposition of Data Matrices by Factors (2019) (0)
Proportional incremental cost probability functions and their frontiers (2023) (0)
Schooling inputs, property tax caps and effciency scores in public schools (2013) (0)
Asymtpotic theory for non i.i.d. processes : Proceedings of the 5th Franco-Belgian Meeting of Statisticians (1986) (0)
Decomposition of Data Matrices by Factors (2015) (0)
Appendix A: Symbols and Notations (2012) (0)
Nonparametric Statistical Analysis of Production (2019) (0)
A Note on Stieltjes Moment Sequences (1977) (0)
Centre for Efficiency and Productivity Analysis Working Paper Series No . WP 14 / 2010 Local Maximum Likelihood Techniques with Categorical Data (2011) (0)
Revisiting Forecasting of Recessions via Dynamic Probit for Time Series by Kauppi and Saikkonen (2008) (2017) (0)
Analysing total factor productivity through a bootstrap-based nonparametric approach: the case of italian regions (2007) (0)
Hyper-rectangular space partitioning trees: A practical approach (2005) (0)
Regression Models (2019) (0)
Hyper-rectangular space partitioning classification trees : a few insights (2001) (0)
The Econometric Theory Awards 2016 (2016) (0)
ERIES Quality and its Impact on Efficiency (0)
THEORY AND APPLICATIONS OF LEAST SQUARES APPROXIMATION (1983) (0)
Further improvements of finite sample approximation of central limit theorems for envelopment estimators (2023) (0)
A Short Excursion into Matrix Algebra (2019) (0)
Index coefficients estimation in single-index models: the generalized maximum rank correlation estimator (2005) (0)
Categorical data in local maximum likelihood: theory and applications to productivity analysis (2014) (0)
Variable Selection (2019) (0)
Explaining inefficiency in nonparametric production models: the state of the art (2012) (0)
Confidence interval for the expenses linked to hospital stays : usefulness of bootstrapping survival curves. (2001) (0)
How (in)efficient are European Higher Education Institutions? A Robust Nonparametric Analysis (2011) (0)
Predicting Recessions: A New Measure of Output Gap as Predictor (2019) (0)
Discussion on “Subjective Probability Modeling with Elliptical Distributions” (1984) (0)
Comparison of Batches (2015) (0)
Modified least-squares estimators for deterministic frontier functions (1986) (0)
The Three I's of Public Schools: Irrelevant Inputs, Insufficient Resources and Inefficiency (2016) (0)
LEM W ORKING P APER S ERIES Fast and Eicient Computation of Directional Distance Estimators (2018) (0)