Irrigation water productivity in Cambodian rice systems

Christopher Wokker, Paulo Santos, Ros Bansok

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Knowledge of the marginal productivity of water is crucial for decisions about its allocation between uses, which is particularly important in the context of increasing competition for water. Using primary, plot-level panel data, this article estimates the marginal productivity of water from supplementary irrigation in lowland rice systems in Cambodia, taking into account farmer and plot heterogeneity as well as self-selection of supplementary irrigation. Our estimates indicate a range of elasticities for rice output with respect to water inputs of between 0.057 and 0.069 for wet season production, substantially lower than previous estimates based on either aggregate or trial data. We discuss the policy implications of these results, in particular with respect to the utility of demand management policies and the challenges they pose to the decentralization of water management to Farmer Water Users Groups.
Original languageEnglish
Pages (from-to)421 - 430
Number of pages10
JournalAgricultural Economics
Volume45
Issue number4
DOIs
Publication statusPublished - 2014

Cite this

Wokker, Christopher ; Santos, Paulo ; Bansok, Ros. / Irrigation water productivity in Cambodian rice systems. In: Agricultural Economics. 2014 ; Vol. 45, No. 4. pp. 421 - 430.
@article{01790c9613b84372a5f501db78b7109a,
title = "Irrigation water productivity in Cambodian rice systems",
abstract = "Knowledge of the marginal productivity of water is crucial for decisions about its allocation between uses, which is particularly important in the context of increasing competition for water. Using primary, plot-level panel data, this article estimates the marginal productivity of water from supplementary irrigation in lowland rice systems in Cambodia, taking into account farmer and plot heterogeneity as well as self-selection of supplementary irrigation. Our estimates indicate a range of elasticities for rice output with respect to water inputs of between 0.057 and 0.069 for wet season production, substantially lower than previous estimates based on either aggregate or trial data. We discuss the policy implications of these results, in particular with respect to the utility of demand management policies and the challenges they pose to the decentralization of water management to Farmer Water Users Groups.",
author = "Christopher Wokker and Paulo Santos and Ros Bansok",
year = "2014",
doi = "10.1111/agec.12096",
language = "English",
volume = "45",
pages = "421 -- 430",
journal = "Agricultural Economics",
issn = "0169-5150",
publisher = "Wiley-Blackwell",
number = "4",

}

Irrigation water productivity in Cambodian rice systems. / Wokker, Christopher; Santos, Paulo; Bansok, Ros.

In: Agricultural Economics, Vol. 45, No. 4, 2014, p. 421 - 430.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Irrigation water productivity in Cambodian rice systems

AU - Wokker, Christopher

AU - Santos, Paulo

AU - Bansok, Ros

PY - 2014

Y1 - 2014

N2 - Knowledge of the marginal productivity of water is crucial for decisions about its allocation between uses, which is particularly important in the context of increasing competition for water. Using primary, plot-level panel data, this article estimates the marginal productivity of water from supplementary irrigation in lowland rice systems in Cambodia, taking into account farmer and plot heterogeneity as well as self-selection of supplementary irrigation. Our estimates indicate a range of elasticities for rice output with respect to water inputs of between 0.057 and 0.069 for wet season production, substantially lower than previous estimates based on either aggregate or trial data. We discuss the policy implications of these results, in particular with respect to the utility of demand management policies and the challenges they pose to the decentralization of water management to Farmer Water Users Groups.

AB - Knowledge of the marginal productivity of water is crucial for decisions about its allocation between uses, which is particularly important in the context of increasing competition for water. Using primary, plot-level panel data, this article estimates the marginal productivity of water from supplementary irrigation in lowland rice systems in Cambodia, taking into account farmer and plot heterogeneity as well as self-selection of supplementary irrigation. Our estimates indicate a range of elasticities for rice output with respect to water inputs of between 0.057 and 0.069 for wet season production, substantially lower than previous estimates based on either aggregate or trial data. We discuss the policy implications of these results, in particular with respect to the utility of demand management policies and the challenges they pose to the decentralization of water management to Farmer Water Users Groups.

U2 - 10.1111/agec.12096

DO - 10.1111/agec.12096

M3 - Article

VL - 45

SP - 421

EP - 430

JO - Agricultural Economics

JF - Agricultural Economics

SN - 0169-5150

IS - 4

ER -