Gary Zajac

1.1k total citations
40 papers, 764 citations indexed

About

Gary Zajac is a scholar working on Sociology and Political Science, General Health Professions and Clinical Psychology. According to data from OpenAlex, Gary Zajac has authored 40 papers receiving a total of 764 indexed citations (citations by other indexed papers that have themselves been cited), including 26 papers in Sociology and Political Science, 15 papers in General Health Professions and 7 papers in Clinical Psychology. Recurrent topics in Gary Zajac's work include Criminal Justice and Corrections Analysis (22 papers), Crime Patterns and Interventions (12 papers) and Homelessness and Social Issues (10 papers). Gary Zajac is often cited by papers focused on Criminal Justice and Corrections Analysis (22 papers), Crime Patterns and Interventions (12 papers) and Homelessness and Social Issues (10 papers). Gary Zajac collaborates with scholars based in United States, Kuwait and Canada. Gary Zajac's co-authors include Wayne N. Welsh, Ali A. Al‐Kazemi, John G. Bruhn, Derek A. Kreager, David R. Schaefer, Denise L. Haynie, Jacob T.N. Young, Martin Bouchard, Pamela K. Lattimore and Gerald J. Stahler and has published in prestigious journals such as American Sociological Review, Journal of Business Ethics and Drug and Alcohol Dependence.

In The Last Decade

Gary Zajac

38 papers receiving 719 citations

Peers

Gary Zajac

SPS

GHP

EPIDE

ISM

T. Wing Lo Hong Kong

Dean A. Dabney United States

Margaret Malloch United Kingdom

Richard Rosenfeld United States

Elizabeth Ehrhardt Mustaine United States

Danielle S. Rudes United States

David E. Duffee United States

Noora Ellonen Finland

Thomas G. Blomberg United States

Jurg Gerber United States

T. Wing Lo Hong Kong

Gary Zajac

473 ×0.9

SPS

145 ×0.6

GHP

234 ×0.9

84 ×0.8

EPIDE

12 ×0.1

ISM

Citations per year, relative to Gary Zajac Gary Zajac (= 1×) peers T. Wing Lo

Countries citing papers authored by Gary Zajac

Since Specialization

Citations

This map shows the geographic impact of Gary Zajac's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Gary Zajac with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Gary Zajac more than expected).

Fields of papers citing papers by Gary Zajac

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Gary Zajac. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Gary Zajac. The network helps show where Gary Zajac may publish in the future.

Co-authorship network of co-authors of Gary Zajac

This figure shows the co-authorship network connecting the top 25 collaborators of Gary Zajac. A scholar is included among the top collaborators of Gary Zajac based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Gary Zajac. Gary Zajac is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Henry, Brandy F., et al.. (2025). A longitudinal mixed methods social network analysis to evaluate a peer-led housing program for older men returning from incarceration: Study protocol & pre-implementation results. Health & Justice. 13(1). 52–52.

Kreager, Derek A., et al.. (2025). Bridge Over Troubled Waters? Certified Recovery Specialist Support and Community Reentry: A Pilot Study. International Journal of Offender Therapy and Comparative Criminology. 69(12). 1761–1780.

Ulmer, Jeffery T., et al.. (2024). Geographic Arbitrariness in Capital Punishment: Death as an Inhabited Institution. American Sociological Review. 90(2). 318–348. 3 indexed citations

Ulmer, Jeffery T., Gary Zajac, & John H. Kramer. (2020). Geographic arbitrariness? County court variation in capital prosecution and sentencing in Pennsylvania. Criminology & Public Policy. 19(4). 1073–1112. 7 indexed citations

Zajac, Gary, et al.. (2020). The Implementation of the honest opportunity probation with enforcement demonstration field experiment: experiences from the field. Journal of Crime and Justice. 44(1). 103–118. 1 indexed citations

Kreager, Derek A., et al.. (2019). Evaluating peer-influence processes in a prison-based therapeutic community: a dynamic network approach. Drug and Alcohol Dependence. 203. 13–18. 9 indexed citations

Ulmer, Jeffery T., John H. Kramer, & Gary Zajac. (2019). The Race of Defendants and Victims in Pennsylvania Death Penalty Decisions: 2000–2010. Justice Quarterly. 37(5). 955–983. 16 indexed citations

Kreager, Derek A., Jacob T.N. Young, Denise L. Haynie, et al.. (2017). Where “Old Heads” Prevail: Inmate Hierarchy in a Men’s Prison Unit. American Sociological Review. 82(4). 685–718. 73 indexed citations

McNeeley, Susan, et al.. (2017). Measuring the Criminal Mind: The Relationship Between Intelligence and CSS-M Results Among a Sample of Pennsylvania Prison Inmates. Criminal Justice and Behavior. 44(11). 1444–1461. 5 indexed citations

10.

Kreager, Derek A., David R. Schaefer, Martin Bouchard, et al.. (2015). Toward a Criminology of Inmate Networks. Justice Quarterly. 33(6). 1000–1028. 63 indexed citations

11.

Elliott, Ian A. & Gary Zajac. (2013). EVALUABILITY ASSESSMENTS OF THE CIRCLES OF SUPPORT AND ACCOUNTABILITY (COSA) MODEL. 1 indexed citations

12.

Welsh, Wayne N. & Gary Zajac. (2013). A Multisite Evaluation of Prison-Based Drug Treatment. The Prison Journal. 93(3). 251–271. 16 indexed citations

13.

Stahler, Gerald J., Jeremy Mennis, Steven Belenko, et al.. (2013). Predicting Recidivism for Released State Prison Offenders. Criminal Justice and Behavior. 40(6). 690–711. 84 indexed citations

14.

Zajac, Gary, et al.. (2009). But Some of Them Don’t Come Back (to Prison!). The Prison Journal. 89(3). 239–264. 60 indexed citations

15.

Welsh, Wayne N. & Gary Zajac. (2004). A Census of Prison-Based Drug Treatment Programs: Implications for Programming, Policy, and Evaluation. Crime & Delinquency. 50(1). 108–133. 21 indexed citations

16.

Zajac, Gary. (2002). KNOWLEDGE CREATION, UTILIZATION AND PUBLIC POLICY: HOW DO WE KNOW WHAT WE KNOW IN CRIMINOLOGY?. Criminology & Public Policy. 1(2). 251–254. 3 indexed citations

17.

Bruhn, John G., Gary Zajac, & Ali A. Al‐Kazemi. (2001). Ethical Perspectives on Employee Participation in Planned Organizational Change: A Survey of Two State Public Welfare Agencies. Public Performance & Management Review. 25(2). 208–208. 5 indexed citations

18.

Zajac, Gary & Ali A. Al‐Kazemi. (2000). Administrative ethics and organizational learning in Kuwait and the united states: an empirical approach. International Journal of Public Administration. 23(1). 21–52. 7 indexed citations

19.

Al‐Kazemi, Ali A. & Gary Zajac. (1998). THE SELF‐MANAGED TEAM AND TORI THEORY. International Journal of Commerce and Management. 8(1). 70–87. 5 indexed citations

20.

Zajac, Gary. (1997). Reinventing Government and Reaffirming Ethics: Implications for Organizational Development in the Public Service. Public Administration Quarterly. 20(4). 385. 12 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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