Policy Note: Why Irrigation Water Pricing is Difficult

Petra Hellegers and Brian Davidson ()
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Petra Hellegers: Water Resources Management Group, Wageningen University and Research, The Netherlands
Brian Davidson: ��School of Agriculture, Food and Ecosystem Sciences, University of Melbourne, Parkville, Vic 3010, Australia

Water Economics and Policy (WEP), 2024, vol. 10, issue 01, 1-8

Abstract: Could irrigation water pricing be reformed so that the practice of irrigation is less harmful? Answering this question requires insights into how water pricing reform works for different irrigators/crops each with its own price elasticity of irrigation water demand and water supply, and into the political complexity of irrigation water pricing reform. In particular, the full benefits and costs associated with irrigation are an important, but often inadequately understood, element in irrigation water pricing reform. In this paper, these insights are investigated using the theoretical concepts of supply and demand. It is shown that the market cannot provide the full benefits from irrigation and ignores the full costs. It is also shown that the shape of the irrigation water supply and demand schedules, the current equilibrium position and the size of the charge required to get to a socially optimum position all work against irrigation water pricing as a tool that can be used to reduce demand. These concepts can be used to assess the implications of irrigation pricing reform comprehensively, explicitly and consistently, so that the implicit subsidies and externalities become visible.

Date: 2024
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DOI: 10.1142/S2382624X23710017

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