TITLE: A Study of Conflict and Cooperation in the Mekong River Basin: How Issues, Actors and Scale Matter Presented by Tanya Heikkila, University of Colorado Denver, School of Public Affairs in collaboration with Andrea K. Gerlak, University of Arizona & Aaron Wolf, Oregon State University ABSTRACT: Like other international river basins, the Mekong River faces considerable challenges related to issues such as climate change, hydropower and land-use development. How states within international river basins respond to these issues - e.g. whether though conflict or cooperation - is of increasing interest to scholars. Although a number of studies have begun to explore whether particular water management challenges, such as climate change, can explain the emergence of international conflicts, few have taken a more micro-level view to explore how issues relate to different types of conflict or cooperation events. Also, scholars have not yet compared whether such issues play out differently at international versus domestic scales. In this study we explore how different types of water management issues are associated with the degree to which actors engage in cooperation or conflict in the Mekong basin, both at the international and domestic scale. To analyze this question we use data on both international events and domestic events in the Mekong basin collected as part of the Basins at Risk Project at Oregon State University.