W08-4 3/3/08 © 2008 by author Forthcoming in Environment: Science and Policy for Sustainable Development (July/August 2008) Sustainable Development of Common-Pool Resources by Elinor Ostrom Workshop in Political Theory and Policy Analysis Indiana University Center for the Study of Institutional Diversity Arizona State University The author thanks Gwen Arnold and Frank van Laerhoven for their help in preparing basic statistical materials for this paper; James Acheson, Krister Andersson, Xavier Basurto, Eduardo Brondizio, Burnell Fischer, Helen Ingram, Raul P. Lejano, and Ruth Meinzen-Dick for helpful comments that helped me improve the paper; Sarah Beam for her active encouragement and comments; and Patty Lezotte for her fabulous editing skills. This publication was made possible through support provided by the United States Agency for International Development (USAID) for the Sustainable Agriculture and Natural Resources Management Collaborative Research Support Program (SANREM CRSP) under terms of Grant No. EPP-A-00-04-00013-00 to the Office of International Research and Development (OIRED) at Virginia Polytechnic Institute and State University (Virginia Tech). Workshop in Political Theory and Policy Analysis Indiana University 513 N. Park Avenue Bloomington, Indiana 47408 Phone: 812-855-0441 / Fax: 812-855-3150 E-mail: ostrom@indiana.edu