Efficient groundwater allocation and binding hydrologic externalities

Levan Elbakidze, Hannah Vinson, Kelly Cobourn and Garth Taylor

Resource and Energy Economics, 2018, vol. 53, issue C, 147-161

Abstract: Reallocating water according to its highest marginal value can generate economic gains. However, reallocation of water use often generates third-party effects, or externalities, which prohibit transfers. We develop a spatial-dynamic hydro-economic model to assess the gains from redistributing water across irrigators, taking into account externalities that water use transfers may produce. Water use is optimized across space and time such that return flows in various segments of the watershed do not decrease relative to the flows obtained under current water use. Across a suite of water shortage scenarios in Idaho’s Eastern Snake River Plain, the reallocation of water subject to third party externalities generates an 8–16% increase in aggregate annual profit earned by irrigators, relative to the Prior Appropriation-based allocation. The failure to account for the constraints on reallocation that arise due to externalities overstates the benefits from reallocation by 7%.

Keywords: Water use distribution; Efficiency; Water shortage; Hydrologic externalities (search for similar items in EconPapers)
JEL-codes: Q25 Q28 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:resene:v:53:y:2018:i:c:p:147-161

DOI: 10.1016/j.reseneeco.2018.05.002

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