Andreas Thiel is Professor of International Agricultural Policy and Environmental Governance at the Faculty of Organic Agricultural Sciences at Universität Kassel, Germany. He is an Affiliated Faculty member of the Ostrom Workshop in Political Theory and Policy Analysis and Senior Fellow at the Centre for Global Cooperation Research at University of Duisburg-Essen. His research addresses the institutional dimension of social-ecological systems with specific focus on governance in the water, agriculture and biodiversity sectors. William A. Blomquist is Professor of Political Science at Indiana University-Purdue University, Indianapolis, and is an Affiliated Faculty member of the Ostrom Workshop in Political Theory and Policy Analysis. He is the author of Dividing the Waters (1992), co-author of Embracing Watershed Politics (2008) and Common Waters, Diverging Streams (2004), and co-editor of Integrated River Basin Management through Decentralization (2007). Dustin E. Garrick is Associate Professor of Environmental Management at the University of Oxford. His research on polycentric governance focuses on water allocation and markets as responses to climate change, urbanization and sustainable development challenges. His book, Water Allocation in Rivers under Pressure (2015), assesses the evolution and performance of water markets and polycentric river basin governance in Australia and the US.