A Department of Homeland Security Emeritus Center of Excellence led by the University of Maryland

Violence Adoption and Desistance


Violence Adoption and Desistance

Project Title Investigators Project Period
The Mobilization Puzzle: How Individual, Group, and Situational Dynamics Produce Extremist Outcomes Gary LaFree, Michael Jensen January, 2020 to December, 2022
Divergent Dimensions of Radicalization Risk: Migration and Violent Extremism in Sabah Barnett S. Koven September, 2019 to March, 2021
Tracking Cartels: Exploiting Open Sources to Identify Trends Marcus A. Boyd, Samuel D. Henkin July, 2019 to July, 2020
Global Terrorism Database (GTD) Acceleration Erin Miller January, 2019 to January, 2020
Global Terrorism Database (GTD) Erin Miller, Gary LaFree, Laura Dugan June, 2001 to January, 2020
Developing Academic Partnerships and Collaborative Research on Countering Violent Extremism in Malaysia and Southeast Asia Amy Pate, Barnett S. Koven, William Braniff September, 2018 to December, 2019
Bargaining on and off the Battlefield: The Bargaining Model of War and Negotiations with the Afghan Taliban Barnett S. Koven February, 2019 to August, 2019
Coalition Building for CVE and Community Resilience William Braniff October, 2015 to September, 2018
Two to Tango: Government and Terrorist Group Actions in Colombia Barnett S. Koven March, 2018 to June, 2018
Country Reports on Terrorism - Statistical Annex Gary LaFree, Erin Miller May, 2012 to May, 2018
Unifying Approaches to Adversarial Modeling H. Brinton Milward, Ronald Breiger July, 2015 to December, 2017
Dynamics of Terrorism and Counterterrorism Campaigns Gary Ackerman, Joseph Young, R. Karl Rethemeyer, Victor Asal July, 2014 to December, 2017
Empirical Assessment of Domestic Radicalization (EADR) Michael Jensen, Gary LaFree January, 2013 to December, 2016
Terrorist and Extremist Organizations (TEO) Database Jonathan Wilkenfeld, R. Karl Rethemeyer July, 2012 to December, 2016
Radicalization of Momin Khawaja Clark McCauley, Sophia Moskalenko July, 2013 to June, 2015
Terrorist Behavior and Societal Tolerance of Violence Risa Brooks July, 2012 to December, 2013
Turning to Terrorism: Ethnic, Religious, and Extremist Organizations Jonathan Wilkenfeld, Victor Asal June, 2008 to December, 2011
Guerilla Insurgency: The Springboard to Terrorism? Mark Lichbach June, 2008 to August, 2011
Tracking Sympathy and Support of Muslims for Terrorism in Muslim Countries and in the United Kingdom Clark McCauley June, 2008 to May, 2011
Patterns of Radicalization in Political Activism Donatella della Porta, Manuela Caiani June, 2008 to December, 2009
Assessing the Effectiveness of Current De-Radicalization Initiatives and Identifying Implications for the Development of U.S.-Based Initiatives in Multiple Settings June, 2008 to June, 2009
Hizb ut-Tahrir al-Islami: The Challenge of a Non-Violent Radical Islam Clark McCauley, Emmanuel Karagiannis June, 2005 to June, 2009
Understanding Desistance from Terrorism Clark McCauley May, 2005 to May, 2009
Project Title Publication Date START Authors Publication Type
Blockade of Peace: Corruption and Crime June 2017 Panyan, Karina Journal Article
Carrots, Sticks, and Insurgent Targeting of Civilians August 2018 Phillips, Brian; Young, Joseph; Rethemeyer, R. Karl; Asal, Victor Journal Article
Civil Action and the Dynamics of Violence September 2019 Chenoweth, Erica Book
Crisis managers but not conflict resolvers: Mediating ethnic intrastate conflict in Africa July 2013 Wilkenfeld, Jonathan; Asal, Victor Journal Article
Deterring and Preventing Terrorism April 2018 Freilich, Joshua; Chermak, Steven Book Chapter
Digital Participation Roles of the Global Jihad: Social Media’s Role in Bringing Together Vulnerable Individuals and VEO Content March 2018 Ligon, Gina Scott White Paper
Disengagement from Ideologically-Based and Violent Organizations: A Systematic Review of the Literature October 2016 Ligon, Gina Scott; Simi, Peter Journal Article
Examining Extrajudicial Killings: Discriminant Analyses of Human Rights’ Violations June 2019 Asal, Victor Journal Article
Examining the Effect of Repressive and Conciliatory Government Actions on Terrorism Activity in Israel May 2015 Parkin, William Journal Article
Group Desistance from Terrorism: A Dynamic Perspective November 2009 McCauley, Clark Journal Article
How effective are our 'better angels'? Assessing country-level declines in homicide since 1950 July 2015 LaFree, Gary Journal Article
Introducing the Nonviolent Action in Violent Contexts (NVAVC) dataset January 2019 Chenoweth, Erica Journal Article
Investigating the Applicability of Situational Crime Prevention to the Public Mass Violence Context December 2019 Freilich, Joshua; Chermak, Steven Journal Article
Invisible Empire of Hate: Gender Differences in the Ku Klux Klan's Online Justifications for Violence September 2018 Freilich, Joshua; Chermak, Steven Journal Article
Is Antifa a Terrorist Group? May 2018 LaFree, Gary Journal Article
Lowest of the Low: Why Some Countries Suffer Terrorist Attacks against Schools December 2019 Asal, Victor Journal Article
Media Effects: Do Terrorist Organizations Launch Foreign Attacks in Response to Levels of Press Freedom or Press Attention? May 2015 Asal, Victor Journal Article
Migration, Crime, and Victimization May 2019 Freilich, Joshua; Belli, Roberta Book Chapter
Nonviolent Resistance and Prevention of Mass Killings During Popular Uprisings April 2018 Chenoweth, Erica Report
Organizational and Institutional Approaches: Social Movement Studies Perspectives on Political Violence May 2019 della Porta, Donatella Book Chapter
Organizational-Level Characteristics in Right-Wing Extremist Groups in the United States Over Time February 2016 Freilich, Joshua; Chermak, Steven; Asal, Victor Journal Article
Political Islam: Untangling the Conceptual Muddle September 2007 Mainuddin, Rolin Journal Article
Political Mobilization and Institutions April 2015 Chenoweth, Erica Book Chapter
Potential implications of the attempted coup d’etat and counter-coup in Turkey for domestic politics and regional security October 2016 McGrath, Erin Discussion Point
Protestors, Terrorists or Something Else? How to Think about Dissident Groups October 2019 Young, Joseph Journal Article
Radicalization to Violence: A Pathway Approach to Studying Extremism April 2018 Atwell Seate, Anita; Jensen, Michael; James, Patrick Journal Article
Radicalization: A Relational Perspective May 2018 della Porta, Donatella Journal Article
Rebel Group Attrition and Reversion to Violence: Micro-Level Evidence from Syria January 2020 Mironova, Vera Journal Article
Routine Activities and Right-Wing Extremists: An Empirical Comparison of the Victims of Ideologically Motivated and Non-Ideologically Motivated Homicides Committed by American Far-Rightists August 2015 Freilich, Joshua; Parkin, William Journal Article
Secure in their Beliefs: Personal Security, the Quest for Personal Significance, and the Psychology of Extremism April 2015 Kruglanski, Arie Book Chapter
Target-Oriented Utility Theory for Modeling the Deterrent Effects of Counterterrorism November 2014 Bier, Vicki Journal Article
Terrorist Attacks against Religious Targets in the United States, 1970 – 2017 October 2018 Miller, Erin Project Fact Sheet
Terrorist Disengagement and De-radicalisation April 2018 Braddock, Kurt Book Chapter
Terrorist Rehabilitation: Genesis, Genealogy and Likely Future June 2015 Book Chapter
The Puzzle of Nonviolence in Western Sahara May 2016 Leuprecht, Christian Journal Article
Toward a Profile of Lone Wolf Terrorists: What Moves an Individual from Radical Opinion to Radical Action January 2014 McCauley, Clark; Moskalenko, Sophia Journal Article
Turning Away from Terrorism: Lessons from Psychology, Sociology, and Criminology September 2014 Horgan, John Journal Article
Understanding Lone-actor Terrorism: A Comparative Analysis with Violent Hate Crimes and Group-based Terrorism September 2013 Deloughery, Kathleen; King, Ryan D.; Asal, Victor START Reports
Violence in Activism: Instigating Factors and Thresholds Breached January 2010 Hodwitz, Omi Book
Walking Away: The Disengagement and De-radicalization of a Violent Right-Wing Extremist March 2016 Horgan, John Journal Article
When Women Fight: Unemployment, Territorial Control and the Prevalence of Female Combatants in Insurgent Organizations December 2019 Asal, Victor Journal Article
Why Violence Abates: Imposed and Elective Declines in Terrorism Attacks March 2015 Journal Article
Image Title Job Title Institution
Barnett Koven Barnett S. Koven

Training Director

Near-peer Competition Lead Researcher

Counterterrorism Lead Researcher

 University of Maryland
Devin Ellis

Policy & Research Program Director, ICONS Project

 University of Maryland
Elizabeth Yates

Senior Researcher, START

 University of Maryland
Erin MIller Erin Miller

GTD Program Manager, START

 University of Maryland
Peter Simi

Associate Professor, Chapman University

Director, Earl Babbie Research Center

 Chapman University
Samuel D. Henkin

Assistant Research Scientist, START

 University of Maryland
Victor Asal

Associate Professor of Political Science and Chair of Public Administration

 University at Albany, State University of New York
Image Abbreviation Title Direct Link
IVEO IVEO Knowledge Matrix Go
MAROB Minorities at Risk Organizational Behavior (MAROB) Middle East, 1980-2004 Go
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