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Economics and Finance
Belgium
2026
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Mathematics
Belgium
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Economics and Finance 74 364 326 2 2 217 32787
Mathematics 74 210 177 5 5 236 32998

Léopold Simar publications per year

The chart shows the history of publications by Léopold Simar between 1976 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Léopold Simar published across 50 years, from 1976 to 2025, averaging 5.9 papers a year. Output peaked at 31 publications in 2024. 38 of the 296 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1976 to 2025. Vertical axis: number of publications, 0 to 31. Peak 31 publications in 2024. 1976: 1 publication 1977: 3 publications 1978: 1 publication 1979: 1 publication 1980: 2 publications 1981: 0 publications 1982: 0 publications 1983: 6 publications 1984: 9 publications 1985: 2 publications 1986: 2 publications 1987: 1 publication 1988: 1 publication 1989: 5 publications 1990: 1 publication 1991: 2 publications 1992: 3 publications 1993: 1 publication 1994: 4 publications 1995: 7 publications 1996: 3 publications 1997: 2 publications 1998: 6 publications 1999: 5 publications 2000: 3 publications 2001: 5 publications 2002: 8 publications 2003: 4 publications 2004: 1 publication 2005: 8 publications 2006: 7 publications 2007: 12 publications 2008: 6 publications 2009: 4 publications 2010: 8 publications 2011: 12 publications 2012: 11 publications 2013: 4 publications 2014: 8 publications 2015: 18 publications 2016: 11 publications 2017: 11 publications 2018: 5 publications 2019: 19 publications 2020: 7 publications 2021: 10 publications 2022: 3 publications 2023: 5 publications 2024: 31 publications 2025: 7 publications
1976 2025

296 publications in total across all disciplines

View publications per year as a table
Léopold Simar: publications per year, 1976 to 2025
Year Publications
1976 1
1977 3
1978 1
1979 1
1980 2
1981 0
1982 0
1983 6
1984 9
1985 2
1986 2
1987 1
1988 1
1989 5
1990 1
1991 2
1992 3
1993 1
1994 4
1995 7
1996 3
1997 2
1998 6
1999 5
2000 3
2001 5
2002 8
2003 4
2004 1
2005 8
2006 7
2007 12
2008 6
2009 4
2010 8
2011 12
2012 11
2013 4
2014 8
2015 18
2016 11
2017 11
2018 5
2019 19
2020 7
2021 10
2022 3
2023 5
2024 31
2025 7
Total 296
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Léopold Simar publications per year - data summary

  • Léopold Simar, a Mathematics scholar from Université Catholique de Louvain, has 296 publications recorded across 50 years, from 1976 to 2025.
  • The oldest publication on record dates to 1976 and the most recent to 2025.
  • The most productive year is 2024, with 31 publications.
  • The least productive years with any output are 1976, 1978, 1979, 1987 and others, with 1 publication each.
  • 2 of the 50 years in the span carry no publications at all (1981 and 1982).
  • The rate of publication averages 5.9 papers per year over the whole span, or 6.2 per year counting only the 48 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 56 publications, 19% of the career total.
  • Split into equal eras - 1976-1992: 40 publications (2.4 per year); 1993-2009: 86 publications (5.1 per year); 2010-2025: 170 publications (10.6 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Léopold Simar publication distribution in Mathematics in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Mathematics in 2026. The highlighted bar marks where Léopold Simar sits on this spectrum.

No. of scientists
25 50 75 100
Bar chart with 100 bars. Horizontal axis: publications, 42–46 to 537+. Vertical axis: number of scientists, 0 to 112. Most scientists, 112, have 142–146 publications. The last bar groups every scientist with 537 publications or more. The highlighted bar, 232–236 publications, is where this scientist sits. 42–46 publications: 3 scientists 47–51 publications: 5 scientists 52–56 publications: 7 scientists 57–61 publications: 20 scientists 62–66 publications: 14 scientists 67–71 publications: 25 scientists 72–76 publications: 19 scientists 77–81 publications: 35 scientists 82–86 publications: 50 scientists 87–91 publications: 60 scientists 92–96 publications: 86 scientists 97–101 publications: 84 scientists 102–106 publications: 83 scientists 107–111 publications: 90 scientists 112–116 publications: 99 scientists 117–121 publications: 90 scientists 122–126 publications: 91 scientists 127–131 publications: 109 scientists 132–136 publications: 110 scientists 137–141 publications: 98 scientists 142–146 publications: 112 scientists 147–151 publications: 102 scientists 152–156 publications: 88 scientists 157–161 publications: 106 scientists 162–166 publications: 83 scientists 167–171 publications: 102 scientists 172–176 publications: 77 scientists 177–181 publications: 81 scientists 182–186 publications: 78 scientists 187–191 publications: 71 scientists 192–196 publications: 92 scientists 197–201 publications: 64 scientists 202–206 publications: 69 scientists 207–211 publications: 64 scientists 212–216 publications: 62 scientists 217–221 publications: 58 scientists 222–226 publications: 53 scientists 227–231 publications: 50 scientists 232–236 publications: 46 scientists 237–241 publications: 46 scientists 242–246 publications: 46 scientists 247–251 publications: 43 scientists 252–256 publications: 29 scientists 257–261 publications: 45 scientists 262–266 publications: 30 scientists 267–271 publications: 33 scientists 272–276 publications: 34 scientists 277–281 publications: 30 scientists 282–286 publications: 31 scientists 287–291 publications: 21 scientists 292–296 publications: 34 scientists 297–301 publications: 26 scientists 302–306 publications: 10 scientists 307–311 publications: 17 scientists 312–316 publications: 23 scientists 317–321 publications: 13 scientists 322–326 publications: 16 scientists 327–331 publications: 26 scientists 332–336 publications: 13 scientists 337–341 publications: 13 scientists 342–346 publications: 16 scientists 347–351 publications: 17 scientists 352–356 publications: 12 scientists 357–361 publications: 18 scientists 362–366 publications: 18 scientists 367–371 publications: 9 scientists 372–376 publications: 11 scientists 377–381 publications: 8 scientists 382–386 publications: 8 scientists 387–391 publications: 9 scientists 392–396 publications: 9 scientists 397–401 publications: 8 scientists 402–406 publications: 11 scientists 407–411 publications: 6 scientists 412–416 publications: 6 scientists 417–421 publications: 9 scientists 422–426 publications: 8 scientists 427–431 publications: 5 scientists 432–436 publications: 8 scientists 437–441 publications: 8 scientists 442–446 publications: 4 scientists 447–451 publications: 4 scientists 452–456 publications: 4 scientists 457–461 publications: 2 scientists 462–466 publications: 2 scientists 467–471 publications: 4 scientists 472–476 publications: 3 scientists 477–481 publications: 3 scientists 482–486 publications: 6 scientists 487–491 publications: 3 scientists 492–496 publications: 5 scientists 497–501 publications: 5 scientists 502–506 publications: 1 scientist 507–511 publications: 6 scientists 512–516 publications: 4 scientists 517–521 publications: 1 scientist 522–526 publications: 3 scientists 527–531 publications: 1 scientist 532–536 publications: 4 scientists 537+ publications: 100 scientists
42–46 publications 537+

This scientist: 236 publications — 74th percentile

74% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 537 publications or more.

View publications distribution as a table
Number of Mathematics scientists by publication count, Research.com 2026 ranking edition. Based on 3,584 ranked scientists.
Publications Scientists This scientist
42–46 3
47–51 5
52–56 7
57–61 20
62–66 14
67–71 25
72–76 19
77–81 35
82–86 50
87–91 60
92–96 86
97–101 84
102–106 83
107–111 90
112–116 99
117–121 90
122–126 91
127–131 109
132–136 110
137–141 98
142–146 112
147–151 102
152–156 88
157–161 106
162–166 83
167–171 102
172–176 77
177–181 81
182–186 78
187–191 71
192–196 92
197–201 64
202–206 69
207–211 64
212–216 62
217–221 58
222–226 53
227–231 50
232–236 46 236
237–241 46
242–246 46
247–251 43
252–256 29
257–261 45
262–266 30
267–271 33
272–276 34
277–281 30
282–286 31
287–291 21
292–296 34
297–301 26
302–306 10
307–311 17
312–316 23
317–321 13
322–326 16
327–331 26
332–336 13
337–341 13
342–346 16
347–351 17
352–356 12
357–361 18
362–366 18
367–371 9
372–376 11
377–381 8
382–386 8
387–391 9
392–396 9
397–401 8
402–406 11
407–411 6
412–416 6
417–421 9
422–426 8
427–431 5
432–436 8
437–441 8
442–446 4
447–451 4
452–456 4
457–461 2
462–466 2
467–471 4
472–476 3
477–481 3
482–486 6
487–491 3
492–496 5
497–501 5
502–506 1
507–511 6
512–516 4
517–521 1
522–526 3
527–531 1
532–536 4
537+ 100
Download as CSV

Léopold Simar publication distribution in Mathematics in 2026 - data summary

  • The chart plots the publication count of all 3,584 Mathematics scientists ranked by Research.com in 2026, grouped into 100 ranges running from 42–46 to 537+ publications.
  • Léopold Simar, a Mathematics scholar from Université Catholique de Louvain, records 236 publications - the 74th percentile of the discipline.
  • 74% of ranked Mathematics scientists score the same or lower than Léopold Simar, and about 26% score higher.
  • The median of the discipline falls in the 172–176 publications range, and Léopold Simar ranks above the median.
  • The most crowded range is 142–146 publications, holding 112 scientists (3% of the field).
  • 47% of the field sits in the lowest quarter of the value range (up to 162–166 publications), so the distribution leans towards the lower end of the scale.
  • The final bar has no upper bound: it groups every scientist with 537 publications or more, 100 scientists in all (3% of the field).

Léopold Simar D-index placement in Mathematics in 2026

The chart shows the D-index (discipline H-index) distribution of Mathematics scientists ranked by Research.com in 2026. The highlighted bar marks where Léopold Simar sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 57 bars. Horizontal axis: D-Index, 30 to 86+. Vertical axis: number of scientists, 0 to 174. Most scientists, 174, have 30 D-Index. The last bar groups every scientist with 86 D-Index or more. The highlighted bar, 74 D-Index, is where this scientist sits. 30 D-Index: 174 scientists 31 D-Index: 151 scientists 32 D-Index: 174 scientists 33 D-Index: 117 scientists 34 D-Index: 136 scientists 35 D-Index: 127 scientists 36 D-Index: 145 scientists 37 D-Index: 153 scientists 38 D-Index: 150 scientists 39 D-Index: 150 scientists 40 D-Index: 138 scientists 41 D-Index: 136 scientists 42 D-Index: 93 scientists 43 D-Index: 108 scientists 44 D-Index: 115 scientists 45 D-Index: 112 scientists 46 D-Index: 103 scientists 47 D-Index: 75 scientists 48 D-Index: 59 scientists 49 D-Index: 67 scientists 50 D-Index: 60 scientists 51 D-Index: 57 scientists 52 D-Index: 59 scientists 53 D-Index: 62 scientists 54 D-Index: 60 scientists 55 D-Index: 50 scientists 56 D-Index: 42 scientists 57 D-Index: 54 scientists 58 D-Index: 50 scientists 59 D-Index: 42 scientists 60 D-Index: 41 scientists 61 D-Index: 35 scientists 62 D-Index: 40 scientists 63 D-Index: 21 scientists 64 D-Index: 31 scientists 65 D-Index: 27 scientists 66 D-Index: 29 scientists 67 D-Index: 19 scientists 68 D-Index: 25 scientists 69 D-Index: 17 scientists 70 D-Index: 18 scientists 71 D-Index: 12 scientists 72 D-Index: 14 scientists 73 D-Index: 13 scientists 74 D-Index: 18 scientists 75 D-Index: 9 scientists 76 D-Index: 11 scientists 77 D-Index: 10 scientists 78 D-Index: 9 scientists 79 D-Index: 16 scientists 80 D-Index: 12 scientists 81 D-Index: 10 scientists 82 D-Index: 5 scientists 83 D-Index: 5 scientists 84 D-Index: 13 scientists 85 D-Index: 6 scientists 86+ D-Index: 99 scientists
30 D-Index 86+

This scientist: 74 D-Index — 94th percentile

94% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 86 D-Index or more.

View D-Index distribution as a table
Number of Mathematics scientists by D-index, Research.com 2026 ranking edition. Based on 3,584 ranked scientists.
D-Index Scientists This scientist
30 174
31 151
32 174
33 117
34 136
35 127
36 145
37 153
38 150
39 150
40 138
41 136
42 93
43 108
44 115
45 112
46 103
47 75
48 59
49 67
50 60
51 57
52 59
53 62
54 60
55 50
56 42
57 54
58 50
59 42
60 41
61 35
62 40
63 21
64 31
65 27
66 29
67 19
68 25
69 17
70 18
71 12
72 14
73 13
74 18 74
75 9
76 11
77 10
78 9
79 16
80 12
81 10
82 5
83 5
84 13
85 6
86+ 99
Download as CSV

Léopold Simar D-index placement in Mathematics in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 3,584 Mathematics scientists ranked by Research.com in 2026, grouped into 57 ranges running from 30 to 86+ D-Index.
  • Léopold Simar, a Mathematics scholar from Université Catholique de Louvain, records 74 D-Index - the 94th percentile of the discipline.
  • 94% of ranked Mathematics scientists score the same or lower than Léopold Simar, and about 6% score higher.
  • The median of the discipline falls in the 42 D-Index range, and Léopold Simar ranks above the median.
  • The most crowded range is 30 D-Index, holding 174 scientists (5% of the field).
  • 58% of the field sits in the lowest quarter of the value range (up to 44 D-Index), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 86 D-Index or more, 99 scientists in all (3% of the field).

Research.com Recognitions

  • 2026 - Research.com Economics and Finance in Belgium Leader Award
  • 2026 - Research.com Mathematics in Belgium Leader Award
  • 2025 - Research.com Economics and Finance in Belgium Leader Award
  • 2025 - Research.com Mathematics in Belgium Leader Award
  • 2023 - Research.com Mathematics in Belgium Leader Award

Overview

Léopold Simar is a researcher affiliated with the Université Catholique de Louvain in Belgium. Their work primarily spans the broad disciplines of Economics, Econometrics, and Finance, with significant contributions also in Decision Sciences.

Their research focuses on several specialized subfields, including Economics and Econometrics, Management Science and Operations Research, General Economics, Econometrics and Finance, Statistics and Probability, and Environmental Engineering.

Key topics addressed in their publications include Efficiency Analysis Using DEA, Economic and Environmental Valuation, Monetary Policy and Economic Impact, Economic Growth and Productivity, Environmental Impact and Sustainability, Fiscal Policy and Economic Growth, and Spatial and Panel Data Analysis.

Selected recent papers authored by Léopold Simar include:

  • Hypothesis testing in nonparametric models of production using multiple sample splits, 2020, Journal of Productivity Analysis

Other notable recent publications from the data include work authored by close collaborators, reflecting overlapping research interests:

  • INFERENCE IN DYNAMIC, NONPARAMETRIC MODELS OF PRODUCTION: CENTRAL LIMIT THEOREMS FOR MALMQUIST INDICES, 2020, Econometric Theory
  • Quality as a latent heterogeneity factor in the efficiency of universities, 2021, Economic Modelling
  • Latent heterogeneity to evaluate the effect of human capital on world technology frontier, 2021, Journal of Productivity Analysis
  • Gender effect on microfinance social efficiency: A robust nonparametric approach, 2021, European Journal of Operational Research

Frequent coauthors collaborating with Léopold Simar include Paul W. Wilson, Valentin Zelenyuk, Cinzia Daraio, Anne Vanhems, and Simone Di Leo.

The researcher's work has been published repeatedly in several venues, with the highest counts in the Journal of Productivity Analysis and European Journal of Operational Research, each with five publications. They have also appeared in Econometric Theory, Annals of Operations Research, and Nutrients.

Best Publications

  • Estimation and inference in two-stage, semi-parametric models of production processes

    Léopold Simar;Paul W. Wilson

  • Sensitivity Analysis of Efficiency Scores: How to Bootstrap in Nonparametric Frontier Models

    Leopold Simar;Paul W. Wilson

  • Measuring Labor-Efficiency in Post Offices

    Dominique Deprins;Léopold Simar;Henry Tulkens

  • Applied Multivariate Statistical Analysis

    Wolfgang Karl Härdle;Léopold Simar

  • A general methodology for bootstrapping in non-parametric frontier models

    Leâ Opold Simar;Paul W. Wilson

  • Statistical inference in nonparametric frontier models: the state of the art

    Léopold Simar;Paul W. Wilson

  • Nonparametric frontier estimation: a robust approach

    Catherine Cazals;Jean-Pierre Florens;Léopold Simar

  • Advanced Robust and Nonparametric Methods in Efficiency Analysis: Methodology and Applications

    Cinzia Daraio;Léopold Simar

  • Introducing environmental variables in nonparametric frontier models : a probabilistic approach

    Cinzia Daraio;Léopold Simar

  • Two-Stage DEA: Caveat Emptor

    Léopold Simar;Paul W. Wilson

  • Estimating and bootstrapping Malmquist indices

    Léopold Simar;Paul W. Wilson

  • Estimation and Inference in Nonparametric Frontier Models: Recent Developments and Perspectives

    Léopold Simar;Paul W. Wilson

  • A note on the convergence of nonparametric DEA estimators for production efficiency scores

    Alois Kneip;Byeong U. Park;Léopold Simar

  • Non-parametric tests of returns to scale

    Léopold Simar;Paul W Wilson

  • Conditional nonparametric frontier models for convex and nonconvex technologies: A unifying approach

    Cinzia Daraio;Léopold Simar

  • Detecting outliers in frontier models : a simple approach.

    Léopold Simar

  • Asymptotics and Consistent Bootstraps for Dea Estimators in Nonparametric Frontier Models

    Alois Kneip;Léopold Simar;Paul W. Wilson

  • Nonparametric efficiency analysis: a multivariate conditional quantile approach

    Abdelaati Daouia;Léopold Simar

  • Nonparametric stochastic frontiers: a local maximum likelihood approach

    Subal C. Kumbhakar;Byeong U. Park;Léopold Simar;Efthymios G. Tsionas

  • How to measure the impact of environmental factors in a nonparametric production model

    Luiza Bădin;Cinzia Daraio;Léopold Simar

  • Applied Multivariate Statistical Analysis: third edition

    Wolfgang Karl Hardle;Léopold Simar

  • Nonparametric tests of returns to scale

    Léopold Simar;Paul Wilson

  • Computer Intensive Methods in Statistics

    Wolfgang Härdle;Léopold Simar

Frequent Co-Authors

Paul W. Wilson
Paul W. Wilson Clemson University
Cinzia Daraio
Cinzia Daraio Sapienza University of Rome
Valentin Zelenyuk
Valentin Zelenyuk University of Queensland
Byeong U. Park
Byeong U. Park Seoul National University
Wolfgang Karl Härdle
Wolfgang Karl Härdle Humboldt-Universität zu Berlin
Andrea Bonaccorsi
Andrea Bonaccorsi University of Pisa
Robin C. Sickles
Robin C. Sickles Rice University
Alois Kneip
Alois Kneip University of Bonn
Aldo Geuna
Aldo Geuna University of Turin

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