About 

I am an Associate Professor of Political Science at Amherst College, where I run the IRLab @Amherst College. 

My first book, Volatile States in International Politics (Oxford University Press, 2023), won the 2025 ISA-ISSS Best Book Award. It examines how power and interests combine to prompt states to exhibit inconsistent behavior. Leveraging time series analysis and archival research, the book provides an in-depth examination of why countries' treacherous foreign policies often have harmless origins, what this means for international politics, and what to do about it.

My research on civil war and on nuclear weapons technology has been published in outlets such as the British Journal of Political Science, International Interactions, International Studies Quarterly, Journal of Conflict Resolution, Journal of Peace Research, and Perspectives on Politics. My commentary has appeared on New Security Beat, Duck of Minerva, and The Conversation.

I study why combatants destroy the infrastructure civilians need to survive  (power, water, heat), how those choices harm civilians, and how institutions assign responsibility afterward, from the 1991 Gulf War to Russia's war against Ukraine. You can read more about my current research here.

I hold a PhD in Political Science from The Ohio State University and a Laurea Triennale and Laurea Magistrale from Università degli Studi di Bologna (at Forlì).  Previously, I was the Karl Loewenstein Fellow at Amherst College. 

I am on X @ProfEMattiacci. I also host interviews with Academic book authors on the New Books Network.