Why concessions should not be made to terrorist kidnappers.

This paper examines the dynamic implications of making concessions to terrorist kidnappers. We apply a Bayesian Poisson changepoint model to kidnapping incidents associated with three cohorts of countries that differ in their frequency of granting concessions. Depending on the cohort of countries during 2001–2013, terrorist negotiation successes encouraged 64% to 87% more kidnappings. Our findings also hold for 1978–2013, during which these negotiation successes encouraged 26% to 57% more kidnappings. Deterrent aspects of terrorist casualties are also quantified; the dominance of religious fundamentalist terrorists meant that such casualties generally did not curb kidnappings.

[1]  T. Sandler,et al.  The Political Economy of Terrorism: Subject Index , 2005 .

[2]  Mark Pingle,et al.  Kidnap insurance and its impact on kidnapping outcomes , 2012 .

[3]  D. Palacios,et al.  Terrorism and spatial disparities: Does interregional inequality matter? , 2016 .

[4]  Todd Sandler,et al.  Hostage Taking: Determinants of Terrorist Logistical and Negotiation Success , 2009 .

[5]  Todd Sandler,et al.  Terrorist success in hostage-taking missions: 1978–2010 , 2013 .

[6]  Walter Enders,et al.  Domestic versus transnational terrorism: Data, decomposition, and dynamics , 2011 .

[7]  Edward F. Mickolus.  Terrorism, 2005-2007: A Chronology , 2008 .

[8]  Todd Sandler,et al.  Terrorist Success in Hostage-Taking Incidents , 1987 .

[9]  Jong Hee Park,et al.  Structural Change in U.S. Presidents' Use of Force , 2010 .

[10]  Helge Liebert,et al.  On the origin of domestic and international terrorism , 2011 .

[11]  Rukmini Callimachi,et al.  Paying Ransoms, Europe Bankrolls Qaeda Terror , 2014 .

[12]  Harvey E. Lapan,et al.  To Bargain or Not to Bargain: That is the Question , 1988 .

[13]  Todd Sandler,et al.  Hostage Taking : Understanding Terrorism Event Dynamics , 2022 .

[14]  Margaret Wilson,et al.  Toward a Model of Terrorist Behavior in Hostage-Taking Incidents , 2000 .

[15]  T. Sandler,et al.  An economic perspective on transnational terrorism , 2004 .

[16]  Patrick T. Brandt,et al.  What Do Transnational Terrorists Target? Has It Changed? Are We Safer? , 2010 .

[17]  T. Sandler,et al.  A Theoretical Analysis of Transnational Terrorism , 1983, American Political Science Review.

[18]  Edward F. Mickolus.  Terrorism, 1988-1991: A Chronology of Events and a Selectively Annotated Bibliography , 1993 .

[19]  Scott E. Atkinson,et al.  Terrorism in a Bargaining Framework , 1987, The Journal of Law and Economics.

[20]  Jessica L. P. Weeks.  Autocratic Audience Costs: Regime Type and Signaling Resolve , 2008, International Organization.

[21]  J. L. Scott,et al.  Reputation building in hostage taking incidents , 1991 .

[22]  S. Chib.  Estimation and comparison of multiple change-point models , 1998 .