Raising Irrigation Productivity and Releasing Water for Intersectoral Needs’ (RIPARWIN) is a study of river basin management in the Great Ruaha River, Tanzania. The objective of the study is to examine the theory that if irrigation productivity can be raised then water can be released to meet downstream and intra/intersectoral needs. In similar situations role-playing tools have proved to be effective in solving water management conflicts. The River Basin Game described in this working paper is a dialogue tool for decision-makers and water users that has been tested in Tanzania. It comprises a physical representation of the catchment in the form of a large wooden board. The central river flows between the upper catchment and a downstream wetland, and has on it several intakes into irrigation systems of varying sizes. Glass marbles that ‘flow’ down the channel represent the river water. This report includes a literature review of gaming in water resources management, a complete description of the game, details of the practical arrangements required to organize a game-playing session and possible approaches to evaluate the effectiveness of a session.

This book introduces an analytic framework constructed upon the iterated Prisoners' Dilemma game to model and analyze transboundary water interactions along the Nile River. It presents a thorough and in-depth analysis of the historical path through which conflict and cooperation have been generated among the Nile riparians over large-scale developmental schemes. This is done through modeling water interactions in the basin as an iterated Prisoners' Dilemma game and employing process-tracing method to compare four distinguishable rounds of the game: the colonial round, the Cold War round, the post-Cold War round, and the post-2011 round. The book examines the influences of the changing political contexts at the domestic, regional, and global levels on the game outcomes. This framework is initially applied on several cases of international rivers worldwide, while the rest of the book is devoted to the Nile case. The book's central argument is that the riparians' interests, capabilities, and beliefs are heterogeneous in varying degrees and that the changing multilevel political contexts influence the level of such heterogeneities among the riparians, which ultimately drive the equilibrium dynamics in the Nile game to generate different conflictive and cooperative outcomes over time. Although the book's main conclusion indicates that the absence of economic interdependence and regional integration will transfer the game into tug-of-war, which will impose harsh punishment on the basin communities and ecosystems on the long term, the final chapter lists a group of recommendations addressed to the riparian states and international donors, exploring the way for boosting cooperation and preventing conflicts in the basin. Presenting clear theoretical, methodological, and policy implications, this book is appropriate for students and scholars of international relations, hydrology, and development studies.

This book demonstrates what the discipline of economics has to offer as support for analyzing cooperation on management of trans-boundary water resources. It also considers what the discipline of economics has to acquire to become a more effective contributor to trans-boundary water resource management given political, legal, social, physical, scientific, and ecological realities. This book has its genesis in a symposium of the International Water and Resource Economics Consortium held at Annapolis, Maryland, April 13-16, 1997. The symposium was organized by the editors and the book contains papers presented at the symposium with subsequent revisions. The symposium brought together both economists and agency management personnel for the purpose of discussing not only how economic tools apply to trans-boundary water management, but also of identifying the obstacles to making such tools useful and informative to politicians and negotiators in public decision making roles. INTERNATIONAL VERSUS DOMESTIC TRANS-BOUNDARY PROBLEMS Trans-boundary water problems arise in many dimensions. The two most important types of problems emphasized in this book are international and domestic interstate or interregional problems. Cooperation on international problems is especially difficult because enforcement must be voluntary given the sovereignty of nations and the absence of an effective legal enforcement mechanism. Agreements must be sustainable and self-enforced if they are to have lasting benefits. Every negotiating country must be convinced it will receive benefits before it gives its consent to cooperation. In the absence of enforceable agreements, trans-boundary (i. e.