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Irrigation water productivity in Cambodian rice systems

Wokker, Christopher; Santos, Paulo; Bansok, Ros

Agricultural economics: the journal of the International Association of Agricultural Economists. Volume 45:Number 4 (2014, July); pp 421-430 -- John Wiley & Sons, Ltd

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  • Title:
    Irrigation water productivity in Cambodian rice systems
  • Author: Wokker, Christopher;
    Santos, Paulo;
    Bansok, Ros
  • Found In: Agricultural economics: the journal of the International Association of Agricultural Economists. Volume 45:Number 4 (2014, July); pp 421-430
  • Journal Title: Agricultural economics: the journal of the International Association of Agricultural Economists
  • Subjects: Agriculture--Economic aspects--Periodicals; Dewey: 338.105
  • Rights: legaldeposit
  • Publication Details: John Wiley & Sons, Ltd
  • Abstract: 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.


  • Identifier: ETOClsidyv8aedcf51; System Number: LDEAvdc_100025047006.0x000001; Journal ISSN: 0169-5150; 10.1111/agec.12096
  • Publication Date: 2014
  • Physical Description: Electronic
  • Shelfmark(s): ELD Digital store

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