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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Social Sciences and Humanities 41 4870 4511 820 760 138 15541

Mark E. Schaffer publications per year

The chart shows the history of publications by Mark E. Schaffer between 1975 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Mark E. Schaffer published across 51 years, from 1975 to 2025, averaging 3.2 papers a year. Output peaked at 12 publications in 1996. 6 of the 165 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1975 to 2025. Vertical axis: number of publications, 0 to 12. Peak 12 publications in 1996. 1975: 1 publication 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 0 publications 1980: 0 publications 1981: 0 publications 1982: 0 publications 1983: 0 publications 1984: 0 publications 1985: 1 publication 1986: 3 publications 1987: 4 publications 1988: 2 publications 1989: 2 publications 1990: 0 publications 1991: 0 publications 1992: 2 publications 1993: 3 publications 1994: 1 publication 1995: 8 publications 1996: 12 publications 1997: 4 publications 1998: 4 publications 1999: 5 publications 2000: 6 publications 2001: 4 publications 2002: 5 publications 2003: 2 publications 2004: 3 publications 2005: 3 publications 2006: 2 publications 2007: 5 publications 2008: 3 publications 2009: 2 publications 2010: 5 publications 2011: 2 publications 2012: 7 publications 2013: 12 publications 2014: 4 publications 2015: 8 publications 2016: 5 publications 2017: 0 publications 2018: 5 publications 2019: 7 publications 2020: 5 publications 2021: 3 publications 2022: 4 publications 2023: 5 publications 2024: 5 publications 2025: 1 publication
1975 2025

165 publications in total across all disciplines

View publications per year as a table
Mark E. Schaffer: publications per year, 1975 to 2025
Year Publications
1975 1
1976 0
1977 0
1978 0
1979 0
1980 0
1981 0
1982 0
1983 0
1984 0
1985 1
1986 3
1987 4
1988 2
1989 2
1990 0
1991 0
1992 2
1993 3
1994 1
1995 8
1996 12
1997 4
1998 4
1999 5
2000 6
2001 4
2002 5
2003 2
2004 3
2005 3
2006 2
2007 5
2008 3
2009 2
2010 5
2011 2
2012 7
2013 12
2014 4
2015 8
2016 5
2017 0
2018 5
2019 7
2020 5
2021 3
2022 4
2023 5
2024 5
2025 1
Total 165
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Mark E. Schaffer publication distribution in Social Sciences and Humanities in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Social Sciences and Humanities in 2026. The highlighted bar marks where Mark E. Schaffer sits on this spectrum.

No. of scientists
100 200 300 400
Bar chart with 54 bars. Horizontal axis: publications, 44–53 to 570+. Vertical axis: number of scientists, 0 to 474. Most scientists, 474, have 114–123 publications. The last bar groups every scientist with 570 publications or more. The highlighted bar, 134–143 publications, is where this scientist sits. 44–53 publications: 28 scientists 54–63 publications: 61 scientists 64–73 publications: 161 scientists 74–83 publications: 225 scientists 84–93 publications: 301 scientists 94–103 publications: 390 scientists 104–113 publications: 406 scientists 114–123 publications: 474 scientists 124–133 publications: 453 scientists 134–143 publications: 434 scientists 144–153 publications: 407 scientists 154–163 publications: 411 scientists 164–173 publications: 391 scientists 174–183 publications: 313 scientists 184–193 publications: 319 scientists 194–203 publications: 304 scientists 204–213 publications: 285 scientists 214–223 publications: 246 scientists 224–233 publications: 213 scientists 234–243 publications: 170 scientists 244–253 publications: 167 scientists 254–263 publications: 162 scientists 264–273 publications: 138 scientists 274–283 publications: 138 scientists 284–293 publications: 113 scientists 294–303 publications: 106 scientists 304–313 publications: 95 scientists 314–323 publications: 101 scientists 324–333 publications: 81 scientists 334–343 publications: 69 scientists 344–353 publications: 56 scientists 354–363 publications: 36 scientists 364–373 publications: 42 scientists 374–383 publications: 41 scientists 384–393 publications: 44 scientists 394–403 publications: 27 scientists 404–413 publications: 30 scientists 414–423 publications: 20 scientists 424–433 publications: 29 scientists 434–443 publications: 29 scientists 444–453 publications: 25 scientists 454–463 publications: 19 scientists 464–473 publications: 21 scientists 474–483 publications: 11 scientists 484–493 publications: 17 scientists 494–503 publications: 7 scientists 504–513 publications: 6 scientists 514–523 publications: 12 scientists 524–533 publications: 10 scientists 534–543 publications: 7 scientists 544–553 publications: 6 scientists 554–563 publications: 12 scientists 564–569 publications: 8 scientists 570+ publications: 100 scientists
44–53 publications 570+

This scientist: 138 publications — 35th percentile

35% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 570 publications or more.

View publications distribution as a table
Number of Social Sciences and Humanities scientists by publication count, Research.com 2026 ranking edition. Based on 7,777 ranked scientists.
Publications Scientists This scientist
44–53 28
54–63 61
64–73 161
74–83 225
84–93 301
94–103 390
104–113 406
114–123 474
124–133 453
134–143 434 138
144–153 407
154–163 411
164–173 391
174–183 313
184–193 319
194–203 304
204–213 285
214–223 246
224–233 213
234–243 170
244–253 167
254–263 162
264–273 138
274–283 138
284–293 113
294–303 106
304–313 95
314–323 101
324–333 81
334–343 69
344–353 56
354–363 36
364–373 42
374–383 41
384–393 44
394–403 27
404–413 30
414–423 20
424–433 29
434–443 29
444–453 25
454–463 19
464–473 21
474–483 11
484–493 17
494–503 7
504–513 6
514–523 12
524–533 10
534–543 7
544–553 6
554–563 12
564–569 8
570+ 100
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Mark E. Schaffer D-index placement in Social Sciences and Humanities in 2026

The chart shows the D-index (discipline H-index) distribution of Social Sciences and Humanities scientists ranked by Research.com in 2026. The highlighted bar marks where Mark E. Schaffer sits on this spectrum.

No. of scientists
100 200 300
Bar chart with 71 bars. Horizontal axis: D-Index, 30 to 100+. Vertical axis: number of scientists, 0 to 313. Most scientists, 313, have 42 D-Index. The last bar groups every scientist with 100 D-Index or more. The highlighted bar, 41 D-Index, is where this scientist sits. 30 D-Index: 177 scientists 31 D-Index: 210 scientists 32 D-Index: 222 scientists 33 D-Index: 188 scientists 34 D-Index: 181 scientists 35 D-Index: 243 scientists 36 D-Index: 261 scientists 37 D-Index: 272 scientists 38 D-Index: 278 scientists 39 D-Index: 300 scientists 40 D-Index: 297 scientists 41 D-Index: 308 scientists 42 D-Index: 313 scientists 43 D-Index: 300 scientists 44 D-Index: 269 scientists 45 D-Index: 260 scientists 46 D-Index: 228 scientists 47 D-Index: 251 scientists 48 D-Index: 203 scientists 49 D-Index: 186 scientists 50 D-Index: 187 scientists 51 D-Index: 166 scientists 52 D-Index: 138 scientists 53 D-Index: 141 scientists 54 D-Index: 131 scientists 55 D-Index: 137 scientists 56 D-Index: 109 scientists 57 D-Index: 129 scientists 58 D-Index: 95 scientists 59 D-Index: 105 scientists 60 D-Index: 106 scientists 61 D-Index: 86 scientists 62 D-Index: 94 scientists 63 D-Index: 77 scientists 64 D-Index: 79 scientists 65 D-Index: 59 scientists 66 D-Index: 68 scientists 67 D-Index: 51 scientists 68 D-Index: 49 scientists 69 D-Index: 40 scientists 70 D-Index: 43 scientists 71 D-Index: 40 scientists 72 D-Index: 50 scientists 73 D-Index: 46 scientists 74 D-Index: 43 scientists 75 D-Index: 45 scientists 76 D-Index: 45 scientists 77 D-Index: 30 scientists 78 D-Index: 25 scientists 79 D-Index: 31 scientists 80 D-Index: 29 scientists 81 D-Index: 18 scientists 82 D-Index: 21 scientists 83 D-Index: 26 scientists 84 D-Index: 15 scientists 85 D-Index: 15 scientists 86 D-Index: 19 scientists 87 D-Index: 19 scientists 88 D-Index: 12 scientists 89 D-Index: 7 scientists 90 D-Index: 19 scientists 91 D-Index: 20 scientists 92 D-Index: 13 scientists 93 D-Index: 9 scientists 94 D-Index: 13 scientists 95 D-Index: 8 scientists 96 D-Index: 7 scientists 97 D-Index: 6 scientists 98 D-Index: 6 scientists 99 D-Index: 6 scientists 100+ D-Index: 97 scientists
30 D-Index 100+

This scientist: 41 D-Index — 38th percentile

38% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 100 D-Index or more.

View D-Index distribution as a table
Number of Social Sciences and Humanities scientists by D-index, Research.com 2026 ranking edition. Based on 7,777 ranked scientists.
D-Index Scientists This scientist
30 177
31 210
32 222
33 188
34 181
35 243
36 261
37 272
38 278
39 300
40 297
41 308 41
42 313
43 300
44 269
45 260
46 228
47 251
48 203
49 186
50 187
51 166
52 138
53 141
54 131
55 137
56 109
57 129
58 95
59 105
60 106
61 86
62 94
63 77
64 79
65 59
66 68
67 51
68 49
69 40
70 43
71 40
72 50
73 46
74 43
75 45
76 45
77 30
78 25
79 31
80 29
81 18
82 21
83 26
84 15
85 15
86 19
87 19
88 12
89 7
90 19
91 20
92 13
93 9
94 13
95 8
96 7
97 6
98 6
99 6
100+ 97
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Research.com Recognitions

  • 2009 - Fellow of the Royal Society of Edinburgh

Overview

Mark E. Schaffer is affiliated with Heriot-Watt University in the United Kingdom. Their research spans multiple fields, primarily focusing on Mathematics and Economics, Econometrics, and Finance. Their work is distributed across several specialized subfields, including Statistics and Probability, General Economics, Econometrics and Finance, Management Science and Operations Research, Economics and Econometrics, and Artificial Intelligence.

Schaffer's research topics encompass a range of statistical and economic methods, with particular attention to Statistical Methods and Inference, Monetary Policy and Economic Impact, Advanced Causal Inference Techniques, Probability and Statistical Research, Advanced Statistical Methods and Models, Forecasting Techniques and Applications, and Statistical and Numerical Algorithms.

The scientist has published multiple recent papers, reflecting active contributions to methodological developments and applications. Some notable publications include:

  • "lassopack: Model selection and prediction with regularized regression in Stata," 2020, The Stata Journal Promoting Communications on Statistics and Stata
  • "ddml: Double/debiased machine learning in Stata," 2024, The Stata Journal Promoting Communications on Statistics and Stata
  • "pystacked: Stacking generalization and machine learning in Stata," 2023, The Stata Journal Promoting Communications on Statistics and Stata
  • "ddml: Double/Debiased Machine Learning in Stata," 2023, SSRN Electronic Journal
  • "Model Averaging and Double Machine Learning," 2024, SSRN Electronic Journal

Schaffer frequently collaborates with other researchers, including Achim Ahrens, Christian Hansen, Thomas Wiemann, Erkal Ersoy, and Tibor Szendrei. The collaborations indicate a strong network focused on econometrics, machine learning, and related statistical methodologies.

Publication venues where Schaffer's work appears regularly highlight the dissemination channels favored, such as arXiv (Cornell University), The Stata Journal Promoting Communications on Statistics and Stata, SSRN Electronic Journal, Journal of Applied Econometrics, and the Repository for Publications and Research Data (ETH Zurich).

Mark E. Schaffer was awarded the title Fellow of the Royal Society of Edinburgh in 2009.

Best Publications

  • Instrumental variables and GMM: Estimation and testing

    Christopher F. Baum;Mark Edwin Schaffer;Steven Stillman

  • Enhanced routines for instrumental variables/generalized method of moments estimation and testing

    Christopher F. Baum;Mark E. Schaffer;Steven Stillman

  • BP Statistical Review of World Energy 2019

    Erkal Ersoy;Mark Edwin Schaffer;Jan Ditzen

  • Enhanced routines for instrumental variables/GMM estimation and testing

    Christopher F Baum;Mark E. Schaffer;Steven Stillman

  • Competition and Enterprise Performance in Transition Economies: Evidence from a Cross-country Survey

    Wendy Carlin;Steven Fries;Mark E Schaffer;Paul Seabright

  • A Minimum of Rivalry: Evidence from Transition Economies on the Importance of Competition for Innovation and Growth

    Wendy Carlin;Mark E. Schaffer;Paul Seabright

  • XTIVREG28: Stata module to perform extended IV/2SLS, GMM and AC/HAC, LIML and k-class regression for panel data models (version 8)

    Mark Schaffer

  • Evolutionarily stable strategies for a finite population and a variable contest size.

    Unknown

  • XTOVERID: Stata module to calculate tests of overidentifying restrictions after xtreg, xtivreg, xtivreg2, xthtaylor

    Mark Schaffer;Steven Stillman

  • Do Firms in Transition Economies Have Soft Budget Constraints? A Reconsideration of Concepts and Evidence

    Mark Edwin Schaffer

  • Are profit-maximisers the best survivors?: A Darwinian model of economic natural selection

    Unknown

  • XTIVREG2: Stata module to perform extended IV/2SLS, GMM and AC/HAC, LIML and k-class regression for panel data models

    Mark E Schaffer

  • lassopack: Model selection and prediction with regularized regression in Stata:

    Achim Ahrens;Christian B. Hansen;Mark E. Schaffer

  • IVREG210: Stata module for extended instrumental variables/2SLS and GMM estimation (v10)

    Christopher Baum;Mark Schaffer;Steven Stillman

  • Job Creation and Job Destruction in a Transition Economy: Ownership, Firm Size, and Gross Job Flows in Polish Manufacturing 1988-91

    Jozef Konings;Hartmut Lehmann;Mark E. Schaffer

  • Instrumental variables estimation using heteroskedasticity-based instruments

    Christopher Baum;Arthur Lewbel;Mark Schaffer;Oleksandr Talavera

  • IVREG2: Stata module for extended instrumental variables/2SLS and GMM estimation

    Christopher F Baum;Mark E Schaffer;Steven Stillman

  • Economic development and the demand for energy: A historical perspective on the next 20 years

    Christof Rühl;Paul Appleby;Julian Fennema;Alexander Naumov

  • Determinants of Enterprise Performance During Transition

    Alan A. Bevan;Saul Estrin;Mark E. Schaffer

  • The credible-commitment problem in the center-enterprise relationship☆

    Unknown

  • IVREG2H: Stata module to perform instrumental variables estimation using heteroskedasticity-based instruments

    Christopher Baum;Mark Schaffer

  • The capital structure of firms in Central and Eastern Europe

    F Cornelli;R Portes;Mark Edwin Schaffer

  • ACTEST: Stata module to perform Cumby-Huizinga general test for autocorrelation in time series

    Christopher Baum;Mark Schaffer

  • Do Firms in Transition Economies have Soft Budget Constraints? A Reconsideration of the Concepts and Evidence

    Mark E. Schaffer

Frequent Co-Authors

Wendy Carlin
Wendy Carlin University College London
Paul Seabright
Paul Seabright Federal University of Toulouse Midi-Pyrénées
Christopher F. Baum
Christopher F. Baum Boston College
Steven Stillman
Steven Stillman Free University of Bozen-Bolzano
Saul Estrin
Saul Estrin London School of Economics and Political Science
Christian Hansen
Christian Hansen University of Chicago
Gary D. Kleck
Gary D. Kleck Florida State University
Frank Windmeijer
Frank Windmeijer University of Bristol
Thomas J. Dohmen
Thomas J. Dohmen University of Bonn
Oleksandr Talavera
Oleksandr Talavera University of Birmingham

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