Swati Srivastava is Assistant Professor of Political Science at Purdue University. Her research has received awards from the National Endowment for the Humanities, Andrew Mellon Foundation, American Council of Learned Societies, and International Studies Association. She is the founder of the Big Tech and Political Responsibility research lab at Purdue.

• 1. Hybrid sovereignty in international theory; 2. Ideal-types of public/private hybridity; 3. Hybrid sovereign empire in the English East India Company; 4. Contracting American wars through Blackwater; 5. Institutionalizing markets through the international chamber of commerce; 6. Shadowing for Human Rights through amnesty international; 7. Conclusions on Power and Responsibility in hybrid sovereignty.

'The idea that sovereignty in the contemporary international system is an attribute of states is fundamental to much of international relations theory. In Hybrid Sovereignty in World Politics Swati Srivastava argues that the world is much more complicated than that. States and non-state actors are entangled in sovereign global politics in various ways, including contractually, institutionally, and performatively. Through case studies ranging from the English East India Company to Blackwater in the Iraq War, Srivastava provides fascinating historical illustrations of this important and timely argument.' Samuel Barkin, University of Massachusetts Boston