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Abstract
In order to explore the conditions of successful irrigation management, this
study investigates the determinants of household contributions to the cleaning of irrigation
channels and the availability of water. By using primary data collected in an irrigation
scheme in Uganda, we find that household contributions to the cleaning of irrigation channels
are determined by the scarcity of irrigation water, opportunity cost of labor, and private
benefit associated with plot size. We also find that the availability of irrigation water
increases in the tertiary irrigation area where the coefficient of variation of plot size is large.