Optimal allocation and use of water resources in the Mekong river basin

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Efficient, equitable and sustainable water management at the river basin level plays a crucial role in solving growing water shortages. However, water allocation decisions are highly complex due to the temporal and spatial variation in supply and demand. The increasing competition for water among different uses and across countries further complicates basin management. An aggregate, integrated economic-hydrologic river basin model is developed to analyze these issues for the Mekong River Basin in Southeast Asia. Model results indicate competition for Mekong waters and significant tradeoffs between off-stream and instream uses during the dry season; and point to the importance of appropriate institutions for enhanced economic efficiency in water allocation across water-using sectors and countries.