Terrorism In Dictatorships Supplemental Appendix

The appendix to “Terrorism in Dictatorships ” includes several robustness checks and additional results not included in the main manuscript. Specifically, we demonstrate that our key results do not change if we: • analyze simple cross-tabulations of the data, • focus exclusively on domestic terrorist attacks as coded by Enders, Sandler and Gaibulloev (2011), • exclude cases in which civil wars are ongoing from the analysis, • control for the level of observed repression using the Political Terror Scale (Gibney, Cornett and Wood, 2009), • account for the measure of press freedom developed by Freedom House, • account for a regime’s selection of its institutional setup. We largely focus on our binary measure of institutions to minimize the already large number of tables. However, the results are very similar to those reported in the paper with the four category measure of authoritarian institutions for all robustness checks. Cross-Tabulation