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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Political Science 45 353 315 204 173 227 9305

Brendan O'Leary publications per year

The chart shows the history of publications by Brendan O'Leary between 1965 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Brendan O'Leary published across 61 years, from 1965 to 2025, averaging 4.9 papers a year. Output peaked at 63 publications in 2019. 6 of the 296 publications appeared in the last two years.

No. of publications
20 40 60
Bar chart. Horizontal axis: year, 1965 to 2025. Vertical axis: number of publications, 0 to 63. Peak 63 publications in 2019. 1965: 2 publications 1966: 0 publications 1967: 1 publication 1968: 2 publications 1969: 0 publications 1970: 1 publication 1971: 2 publications 1972: 0 publications 1973: 0 publications 1974: 0 publications 1975: 0 publications 1976: 0 publications 1977: 2 publications 1978: 1 publication 1979: 1 publication 1980: 1 publication 1981: 1 publication 1982: 0 publications 1983: 0 publications 1984: 1 publication 1985: 1 publication 1986: 0 publications 1987: 16 publications 1988: 1 publication 1989: 5 publications 1990: 9 publications 1991: 5 publications 1992: 3 publications 1993: 4 publications 1994: 1 publication 1995: 5 publications 1996: 5 publications 1997: 5 publications 1998: 3 publications 1999: 5 publications 2000: 3 publications 2001: 10 publications 2002: 3 publications 2003: 3 publications 2004: 16 publications 2005: 7 publications 2006: 6 publications 2007: 4 publications 2008: 6 publications 2009: 7 publications 2010: 4 publications 2011: 2 publications 2012: 4 publications 2013: 20 publications 2014: 3 publications 2015: 3 publications 2016: 10 publications 2017: 7 publications 2018: 6 publications 2019: 63 publications 2020: 7 publications 2021: 6 publications 2022: 3 publications 2023: 4 publications 2024: 1 publication 2025: 5 publications
1965 2025

296 publications in total across all disciplines

View publications per year as a table
Brendan O'Leary: publications per year, 1965 to 2025
Year Publications
1965 2
1966 0
1967 1
1968 2
1969 0
1970 1
1971 2
1972 0
1973 0
1974 0
1975 0
1976 0
1977 2
1978 1
1979 1
1980 1
1981 1
1982 0
1983 0
1984 1
1985 1
1986 0
1987 16
1988 1
1989 5
1990 9
1991 5
1992 3
1993 4
1994 1
1995 5
1996 5
1997 5
1998 3
1999 5
2000 3
2001 10
2002 3
2003 3
2004 16
2005 7
2006 6
2007 4
2008 6
2009 7
2010 4
2011 2
2012 4
2013 20
2014 3
2015 3
2016 10
2017 7
2018 6
2019 63
2020 7
2021 6
2022 3
2023 4
2024 1
2025 5
Total 296
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Brendan O'Leary publications per year - data summary

  • Brendan O'Leary, a Political Science scholar from University of Pennsylvania, has 296 publications recorded across 61 years, from 1965 to 2025.
  • The oldest publication on record dates to 1965 and the most recent to 2025.
  • The most productive year is 2019, with 63 publications.
  • The least productive years with any output are 1967, 1970, 1978, 1979 and others, with 1 publication each.
  • 10 of the 61 years in the span carry no publications at all (1966, 1969, 1972, 1973 and others).
  • The rate of publication averages 4.9 papers per year over the whole span, or 5.8 per year counting only the 51 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 19 publications, 6% of the career total.
  • Split into equal eras - 1965-1985: 16 publications (0.8 per year); 1986-2006: 115 publications (5.5 per year); 2007-2025: 165 publications (8.7 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Brendan O'Leary publication distribution in Political Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Political Science in 2026. The highlighted bar marks where Brendan O'Leary sits on this spectrum.

No. of scientists
20 40 60 80
Bar chart with 61 bars. Horizontal axis: publications, 36–40 to 333+. Vertical axis: number of scientists, 0 to 97. Most scientists, 97, have 333+ publications. The last bar groups every scientist with 333 publications or more. The highlighted bar, 226–230 publications, is where this scientist sits. 36–40 publications: 10 scientists 41–45 publications: 11 scientists 46–50 publications: 25 scientists 51–55 publications: 27 scientists 56–60 publications: 44 scientists 61–65 publications: 52 scientists 66–70 publications: 62 scientists 71–75 publications: 62 scientists 76–80 publications: 79 scientists 81–85 publications: 71 scientists 86–90 publications: 82 scientists 91–95 publications: 65 scientists 96–100 publications: 85 scientists 101–105 publications: 76 scientists 106–110 publications: 66 scientists 111–115 publications: 78 scientists 116–120 publications: 67 scientists 121–125 publications: 73 scientists 126–130 publications: 73 scientists 131–135 publications: 64 scientists 136–140 publications: 45 scientists 141–145 publications: 53 scientists 146–150 publications: 44 scientists 151–155 publications: 45 scientists 156–160 publications: 33 scientists 161–165 publications: 32 scientists 166–170 publications: 28 scientists 171–175 publications: 31 scientists 176–180 publications: 29 scientists 181–185 publications: 27 scientists 186–190 publications: 36 scientists 191–195 publications: 27 scientists 196–200 publications: 24 scientists 201–205 publications: 16 scientists 206–210 publications: 16 scientists 211–215 publications: 19 scientists 216–220 publications: 16 scientists 221–225 publications: 17 scientists 226–230 publications: 18 scientists 231–235 publications: 23 scientists 236–240 publications: 17 scientists 241–245 publications: 13 scientists 246–250 publications: 17 scientists 251–255 publications: 9 scientists 256–260 publications: 13 scientists 261–265 publications: 8 scientists 266–270 publications: 12 scientists 271–275 publications: 8 scientists 276–280 publications: 10 scientists 281–285 publications: 13 scientists 286–290 publications: 13 scientists 291–295 publications: 5 scientists 296–300 publications: 6 scientists 301–305 publications: 11 scientists 306–310 publications: 9 scientists 311–315 publications: 6 scientists 316–320 publications: 4 scientists 321–325 publications: 4 scientists 326–330 publications: 2 scientists 331–332 publications: 5 scientists 333+ publications: 97 scientists
36–40 publications 333+

This scientist: 227 publications — 84th percentile

84% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 333 publications or more.

View publications distribution as a table
Number of Political Science scientists by publication count, Research.com 2026 ranking edition. Based on 2,033 ranked scientists.
Publications Scientists This scientist
36–40 10
41–45 11
46–50 25
51–55 27
56–60 44
61–65 52
66–70 62
71–75 62
76–80 79
81–85 71
86–90 82
91–95 65
96–100 85
101–105 76
106–110 66
111–115 78
116–120 67
121–125 73
126–130 73
131–135 64
136–140 45
141–145 53
146–150 44
151–155 45
156–160 33
161–165 32
166–170 28
171–175 31
176–180 29
181–185 27
186–190 36
191–195 27
196–200 24
201–205 16
206–210 16
211–215 19
216–220 16
221–225 17
226–230 18 227
231–235 23
236–240 17
241–245 13
246–250 17
251–255 9
256–260 13
261–265 8
266–270 12
271–275 8
276–280 10
281–285 13
286–290 13
291–295 5
296–300 6
301–305 11
306–310 9
311–315 6
316–320 4
321–325 4
326–330 2
331–332 5
333+ 97
Download as CSV

Brendan O'Leary publication distribution in Political Science in 2026 - data summary

  • The chart plots the publication count of all 2,033 Political Science scientists ranked by Research.com in 2026, grouped into 61 ranges running from 36–40 to 333+ publications.
  • Brendan O'Leary, a Political Science scholar from University of Pennsylvania, records 227 publications - the 84th percentile of the discipline.
  • 84% of ranked Political Science scientists score the same or lower than Brendan O'Leary, and about 16% score higher.
  • The median of the discipline falls in the 121–125 publications range, and Brendan O'Leary ranks above the median.
  • The most crowded range is 333+ publications, holding 97 scientists (5% of the field).
  • 44% of the field sits in the lowest quarter of the value range (up to 111–115 publications), so the distribution leans towards the lower end of the scale.
  • The final bar has no upper bound: it groups every scientist with 333 publications or more, 97 scientists in all (5% of the field).

Brendan O'Leary D-index placement in Political Science in 2026

The chart shows the D-index (discipline H-index) distribution of Political Science scientists ranked by Research.com in 2026. The highlighted bar marks where Brendan O'Leary sits on this spectrum.

No. of scientists
25 50 75 100
Bar chart with 43 bars. Horizontal axis: D-Index, 20 to 62+. Vertical axis: number of scientists, 0 to 100. Most scientists, 100, have 62+ D-Index. The last bar groups every scientist with 62 D-Index or more. The highlighted bar, 45 D-Index, is where this scientist sits. 20 D-Index: 76 scientists 21 D-Index: 79 scientists 22 D-Index: 84 scientists 23 D-Index: 68 scientists 24 D-Index: 88 scientists 25 D-Index: 82 scientists 26 D-Index: 76 scientists 27 D-Index: 75 scientists 28 D-Index: 99 scientists 29 D-Index: 96 scientists 30 D-Index: 96 scientists 31 D-Index: 81 scientists 32 D-Index: 86 scientists 33 D-Index: 81 scientists 34 D-Index: 84 scientists 35 D-Index: 72 scientists 36 D-Index: 58 scientists 37 D-Index: 53 scientists 38 D-Index: 48 scientists 39 D-Index: 40 scientists 40 D-Index: 40 scientists 41 D-Index: 32 scientists 42 D-Index: 26 scientists 43 D-Index: 25 scientists 44 D-Index: 33 scientists 45 D-Index: 33 scientists 46 D-Index: 17 scientists 47 D-Index: 21 scientists 48 D-Index: 22 scientists 49 D-Index: 18 scientists 50 D-Index: 19 scientists 51 D-Index: 19 scientists 52 D-Index: 15 scientists 53 D-Index: 14 scientists 54 D-Index: 10 scientists 55 D-Index: 13 scientists 56 D-Index: 9 scientists 57 D-Index: 11 scientists 58 D-Index: 12 scientists 59 D-Index: 10 scientists 60 D-Index: 5 scientists 61 D-Index: 7 scientists 62+ D-Index: 100 scientists
20 D-Index 62+

This scientist: 45 D-Index — 84th percentile

84% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 62 D-Index or more.

View D-Index distribution as a table
Number of Political Science scientists by D-index, Research.com 2026 ranking edition. Based on 2,033 ranked scientists.
D-Index Scientists This scientist
20 76
21 79
22 84
23 68
24 88
25 82
26 76
27 75
28 99
29 96
30 96
31 81
32 86
33 81
34 84
35 72
36 58
37 53
38 48
39 40
40 40
41 32
42 26
43 25
44 33
45 33 45
46 17
47 21
48 22
49 18
50 19
51 19
52 15
53 14
54 10
55 13
56 9
57 11
58 12
59 10
60 5
61 7
62+ 100
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Brendan O'Leary D-index placement in Political Science in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 2,033 Political Science scientists ranked by Research.com in 2026, grouped into 43 ranges running from 20 to 62+ D-Index.
  • Brendan O'Leary, a Political Science scholar from University of Pennsylvania, records 45 D-Index - the 84th percentile of the discipline.
  • 84% of ranked Political Science scientists score the same or lower than Brendan O'Leary, and about 16% score higher.
  • The median of the discipline falls in the 32 D-Index range, and Brendan O'Leary ranks above the median.
  • The most crowded range is 62+ D-Index, holding 100 scientists (5% of the field).
  • 45% of the field sits in the lowest quarter of the value range (up to 30 D-Index), so the distribution leans towards the lower end of the scale.
  • The final bar has no upper bound: it groups every scientist with 62 D-Index or more, 100 scientists in all (5% of the field).

Research.com Recognitions

  • 2016 - Member of the Royal Irish Academy

Overview

Brendan O'Leary is a researcher affiliated with the University of Pennsylvania in the United States. Their academic work spans across social sciences with a notable emphasis on political science and international relations, as well as interdisciplinary connections to sociology and political science.

Their research primarily focuses on Irish and British studies, electoral systems and political participation, migration and integration issues, and political systems and governance. Additionally, O'Leary has contributed to fields related to European and international law, as well as orthopedic surgery and rehabilitation, reflecting a diverse scholarly interest.

Frequent co-authors include:

  • John Garry
  • James Pow
  • S. M. Thomas
  • William T. Kent
  • John Coakley

O'Leary's publication record features several papers in notable venues. Selected works include:

  • The Perception of the Legitimacy of Citizens' Assemblies in Deeply Divided Places? Evidence of Public and Elite Opinion from Consociational Northern Ireland (2021), Government and Opposition
  • Public attitudes to different possible models of a United Ireland: evidence from a citizens' assembly in Northern Ireland (2020), Irish Political Studies
  • The future of Northern Ireland: border anxieties and support for Irish reunification under varieties of UKexit (2020), Regional Studies
  • Getting Ready: The Need to Prepare for a Referendum on Reunification (2021), Irish Studies in International Affairs
  • Public Attitudes to Irish Unification: Evidence on Models and Process from a Deliberative Forum in Ireland (2022), Irish Studies in International Affairs

Frequent publication venues for O'Leary include:

  • Irish Studies in International Affairs
  • European Journal of Orthopaedic Surgery & Traumatology
  • Irish Political Studies
  • Government and Opposition
  • Regional Studies

The researcher has been recognized as a Member of the Royal Irish Academy since 2016.

Best Publications

  • Theories of the State: The Politics of Liberal Democracy

    Patrick Dunleavy;Brendan O'Leary

  • Explaining Northern Ireland: Broken Images

    John McGarry;Brendan O'Leary

  • The Politics of Antagonism: Understanding Northern Ireland

    Brendan O'Leary;John McGarry

  • The Politics of Ethnic Conflict Regulation: Case Studies of Protracted Ethnic Conflicts

    John McGarry;Brendan O'Leary

  • The Northern Ireland Conflict: Consociational Engagements

    John McGarry;Brendan O'Leary

  • Theories of the State

    Patrick Dunleavy;Brendan O’Leary

  • Extremist Outbidding in Ethnic Party Systems is Not Inevitable: Tribune Parties in Northern Ireland

    Paul Mitchell;Geoffrey Evans;Brendan O'Leary

  • Consociational Theory, Northern Ireland's Conflict, and its Agreement. Part 1: What Consociationalists Can Learn from Northern Ireland

    John McGarry;Brendan O'Leary

  • Iraq's Constitution of 2005: Liberal consociation as political prescription

    John McGarry;Brendan O'Leary

  • The Northern Ireland Conflict

    John McGarry;Brendan O'Leary

  • Must Pluri-national Federations Fail?

    John McGarry;Brendan O'Leary

  • Consociational Theory, Northern Ireland's Conflict, and its Agreement 2. What Critics of Consociation Can Learn from Northern Ireland

    John McGarry;Brendan O'Leary

  • The Future of Kurdistan in Iraq

    Brendan O'Leary;John McGarry;Khaled Salih

  • Courts and Consociations: Human Rights versus Power-Sharing

    Christopher McCrudden;Brendan O'Leary

  • Right-sizing the state : the politics of moving borders

    Brendan O'Leary;Ian Lustick;Thomas M. Callaghy

  • Integration or accommodation? The enduring debate in conflict regulation

    Unknown

  • Debating Consociational Politics: Normative and Explanatory Arguments<sup>1</sup>

    Unknown

  • The Danish Cartoon Affair: Free Speech, Racism, Islamism, and Integration

    Tariq Modood;Randall Hansen;Erik Bleich;Brendan O'Leary

  • An iron law of nationalism and federation?: A (neo‐Diceyian) theory of the necessity of a federal Staatsvolk, and of consociational rescue

    Brendan O'leary

  • Divisor Methods for Sequential Portfolio Allocation in Multi-Party Executive Bodies: Evidence from Northern Ireland and Denmark

    Brendan O'Leary;Bernard Grofman;Jorgen Elklit

  • Policing Northern Ireland: proposals for a new start

    Brendan O'Leary;John McGarry

  • On the Nature of Nationalism: An Appraisal of Ernest Gellner's Writings on Nationalism

    Brendan O'leary

  • Power shared after the deaths of thousands

    Brendan O'Leary

Frequent Co-Authors

Christopher McCrudden
Christopher McCrudden Queen's University Belfast
Geoffrey M. Evans
Geoffrey M. Evans University of Newcastle Australia
Patrick Dunleavy
Patrick Dunleavy London School of Economics and Political Science
John Garry
John Garry Queen's University Belfast
Ian S. Lustick
Ian S. Lustick University of Pennsylvania
Bernard Grofman
Bernard Grofman University of California, Irvine
Tariq Modood
Tariq Modood University of Bristol
Erik Bleich
Erik Bleich Middlebury College
Nicholas Sambanis
Nicholas Sambanis Yale University
Fred Halliday
Fred Halliday London School of Economics and Political Science

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