*/ Replication of results presented in Appendices of Michael C. Horowitz, “Nonstate Actors and the Diffusion of Innovations: The Case of Suicide Terrorism,” International Organization 64:1 (Winter 2010), pp. 33-64.*/

*/ If you find any mistakes or issues, please contact the author at horom (at) sas.upenn.edu */

*/ number of connections test */
tabstat numberofconnections, by(suicide)

*/ percentage of connections that adopted suicide terrorism test */
tabstat connectratio, by(suicide)

*/ replication of results to ensure results are consistent with network connections variable */
logit suicide orgage religious numberofconnections communistsocialist leftist nationalistseparatist other lebanon iraqwar israel aqlink, robust
logit suicide orgage religious religorg numberofconnections communistsocialist leftist nationalistseparatist other lebanon iraqwar israel aqlink, robust

*/ replication of results to ensure results are not artifact of pre-suicide terror era groups */
logit suicide orgage religious communistsocialist leftist nationalistseparatist other lebanon iraqwar israel aqlink if lastattackyear>=1980, robust
logit suicide orgage religious religorg communistsocialist leftist nationalistseparatist other lebanon iraqwar israel aqlink if lastattackyear>=1980, robust

*/ replication of results including Asal & Rethemeyer size variable, which limits to groups that conducted attacks in the post'97 period */
logit suicide orgage religious ordsize communistsocialist leftist nationalistseparatist other lebanon iraqwar israel aqlink, robust
logit suicide orgage religious religorg ordsize communistsocialist leftist nationalistseparatist other lebanon iraqwar israel aqlink, robust

*/ replication of results with regression specification */
regress suicide orgage religious communistsocialist leftist nationalistseparatist other lebanon iraqwar israel aqlink, robust
regress suicide orgage religious religorg communistsocialist leftist nationalistseparatist other lebanon iraqwar israel aqlink, robust