His research interests include political economics, economic history, and the political economy of development. He is author of the book From Warfare to Wealth: The Military Origins of Urban Prosperity in Europe (Cambridge University Press, 2017; coauthored with M. Dincecco). This book is the winner of the 2018 William H. Riker Best Book Award (American Political Science Association, Political Economy Section). For a full list of his papers, visit his author page at SSRN.