Water Allocation Under Distribution Losses: Comparing Alternative Institutions

The distribution of water resources is characterized by increasing returns to scale. Distribution systems link water generation to its end-use. Standard economic analysis overlooks the interaction among these micro-markets - generation, distribution and end-use. We compare water allocation when there is market power in each micro-market. These outcomes are compared with benchmark cases - social planning and a competitive business-as-usual regime. Simulations suggest that institutions with market power in generation and end-use generate significantly higher welfare than the distribution monopoly and the competitive regime. However, if the policy goal is to maximize the size of the grid, a distribution monopoly is preferred.