1. "INTERPOL's MIND/FIND Network in Curbing Transnational Terrorism," with Javier Gardeazabal
2. "An Analysis of the Specific Causes of Terrorist Groups' Failure," with Khusrav Gaibulloev
3. "The Changing Nonlinear Relationship between Income and Terrorism," with Walter Enders and Gary A. Hoover
4. "A Study of Remittances and Terrorism," with Raechelle Mascarenhas
5. Collective Action in the Twenty-First Century, a new book
6. "A Study of Collective Action"