1. War or No War: A Spatial Probit Analysis of Civil Wars with James Murdoch
2. Donors' Support of Multilateral Institutions and Bilateral Giving (with Raechelle Mascarenhas)
3. Analysis of Hostage Taking with Margaret A. Wilson
4. Collective Action in the Twenty-First Century, a new book
5. Terrorism Influence on Economic Growth in Europe with Khusrav Gaibulloev
6. On Suicide Terorrism