Penn Faculty and Senior Leadership

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Dr. William Burke-White

Richard Perry Professor and Inaugural Director, Perry World House
Perry World House 219

William Burke-White, an expert on international law and global governance, served in the Obama Administration from 2009-2011 on Secretary Clinton’s Policy Planning Staff, providing the Secretary direct policy advice on multilateral diplomacy and international institutions. He was principal drafter of the Quadrennial Diplomacy and Development Review (QDDR), Secretary Clinton’s hallmark foreign policy and institutional reform effort. Burke-White has written extensively in the fields of international law and institutions, with focus on international criminal and international economic law. His work has addressed issues of post-conflict justice; the International Criminal Court; international human rights, and international arbitration. His current research explores gaps in the global governance system and the challenges of international legal regulation in a world of rising powers and divergent interests. In 2008 he received the A. Leo Levin Award and in 2007 the Robert A. Gorman award for Excellence in Teaching.

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Dr. Michael Horowitz

Associate Director; Professor of Political Science
Perry World House 214

Michael C. Horowitz is a professor of political science at the University of Pennsylvania. He is the author of the award-winning book, The Diffusion of Military Power: Causes and Consequences for International Politics. His research interests include military innovation, the future of war, forecasting, the role of leaders in international politics, and the relationship between religion and international politics. He has published in a wide array of peer reviewed journals, as well as more popular outlets such as the New York Times, Politico and Foreign Policy. Professor Horowitz spent 2013 working for the Office of the Undersecretary of Defense for Policy in the Department of Defense as an International Affairs Fellow, funded by the Council on Foreign Relations. He is affiliated with the Foreign Policy Research Institute, the Center for Strategic and International Studies, and the Center for a New American Security. He is also a Term Member of the Council on Foreign Relations and a member of the International Institute for Strategic Studies. He has held fellowships at the Weatherhead Center, Olin Institute, and Belfer Center at Harvard, where he received his PhD in Government. Professor Horowitz received his BA in political science from Emory University.

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LaShawn Jefferson

Deputy Director, Perry World House
Perry World House 221

LaShawn Jefferson is Perry World House’s Deputy Director. She brings to Perry World House over two decades of legal and policy advocacy, strategic planning and communications, and research and writing on women’s international human rights through civil-society organizations and philanthropy. She joined Perry World House after almost seven years at the Ford Foundation, where she worked to advance women’s human rights globally and in the U.S. through field building and investments in the areas of rights advocacy; strategic communications and engagement; intersectional leadership and analysis; research; and capacity building. For fourteen years, she also held several leadership positions at Human Rights Watch, a global human rights organization, where she led their women’s rights research and advocacy work, providing strategic and intellectual guidance to the work on women’s international human rights, crafting and executing long-term advocacy strategies, and representing HRW at the highest level of national and international fora. She is the author of many reports on a variety of issues confronting women around the world, and has written op-eds and articles that have appeared in the Wall Street Journal and The International Herald Tribune. She received a BA from Connecticut College  and an  MA in International Relations  and Latin American Studies from Johns Hopkins SAIS.