This map shows the geographic impact of John Roman'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 John Roman with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites John Roman more than expected).
This network shows the impact of papers produced by John Roman. 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 John Roman. The network helps show where John Roman may publish in the future.
Co-authorship network of co-authors of John Roman
This figure shows the co-authorship network connecting the top 25 collaborators of John Roman.
A scholar is included among the top collaborators of John Roman 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 John Roman. John Roman is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Roman, John. (2014). Five Steps to Pay for Success Implementing Pay for Success Projects in the Juvenile and Criminal Justice Systems.7 indexed citations
Rossman, Shelli B., John Roman, Janine M. Zweig, Michael Rempel, & Christine Lindquist. (2011). The Multi-Site Adult Drug Court Evaluation: Study Overview and Design.7 indexed citations
Roman, John, et al.. (2009). Document Title: Impact and Cost-Benefit Analysis of the Anchorage Wellness Court.1 indexed citations
12.
Roman, John, et al.. (2008). How to Implement a Model to Get Youth Off Drugs and Out of Crime. Issue Lab (Candid).2 indexed citations
13.
Roman, John. (2008). The DNA Field Experiment: Cost-Effectiveness Analysis of the Use of DNA in the Investigation of High-Volume Crimes.73 indexed citations
Chalfin, Aaron, et al.. (2007). Document Title: The Costs and Benefits of Agricultural Crime Prevention: A Primer for Estimating the Costs and Benefits of the Agricultural Crime Technology Information and Operations Network (ACTION).1 indexed citations
16.
Farrell, Graham & John Roman. (2006). Crime as pollution: proposal for market-based incentives to reduce crime externalities. Loughborough University Institutional Repository (Loughborough University).5 indexed citations
17.
Butts, Jeffrey A. & John Roman. (2004). Juvenile Drug Courts and Teen Substance Abuse.46 indexed citations
Roman, John, et al.. (2000). The shadow economy. Journal of international affairs. 53(2). 387.80 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.