- Ph.D. Politics, New York University
- M.A. Middle East Studies, University of Michigan
Ph.D., New York University, 1999. Piazza's research focuses on terrorism, counterterrorism, political violence and intra-state armed conflict. His published work has appeared in the American Journal of Political Science, the Journal of Politics,International Organization, Comparative Political Studies, International Studies Quarterly, Journal of Conflict Resolution, Public Choice, Journal of Peace Research, Political Psychology, Conflict Management and Peace Science, Political Research Quarterly, Foreign Policy Analysis, International Interactions, Defence and Peace Economics, Southern Economic Journal, Security Studies, Terrorism and Political Violence and Studies in Conflict and Terrorism.