@article{Wokker:126321,
      recid = {126321},
      author = {Wokker, Chris and Santos, Paulo and Ros, Bansok},
      title = {Irrigation water productivity in Cambodian rice systems},
      address = {2012},
      number = {1007-2016-79565},
      pages = {33},
      year = {2012},
      abstract = {In the context of increasing competition for water,  knowledge of
the marginal productivity of water is crucial  in determining its optimal allocation between users. Using  primary, plot level panel data,
this paper estimates the  marginal productivity of water from supple-
mentary  irrigation in lowland rice systems in Cambodia, taking  into
account farmer and plot heterogeneity as well as  self-selection of sup-
plementary irrigation. Our estimates  indicate a range of elasticity for
rice output with respect  to water inputs between 0.057 and 0.069 for
wet season  production, and an estimate of 0.125 in the dry season,  sub-
stantially lower than previous estimates based on  either aggregate or
trial data. We discuss the policy  implications of these results, in par-
ticular with respect  to the utility of demand management policies and
the  challenges they pose to the decentralization of water  management
to Water Users Groups that are meant to be  financially independent.},
      url = {http://ageconsearch.umn.edu/record/126321},
      doi = {https://doi.org/10.22004/ag.econ.126321},
}