Water Constraints to Agricultural Productivity in Bhutan
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World Bank, Washington, DC
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This paper uses two years of
agriculture census data to build a panel dataset that
consists of all the small towns in Bhutan. This dataset is
used to estimate the impact of irrigation gaps and drought
on the yields of paddy, maize, and other crops. The paper
compares the estimated impacts from a panel fixed effects
model and a spatial first differences model. The findings
show that irrigation gaps reduce paddy yields and droughts
reduce maize yields. Estimates from the spatial first
differences model are found to be consistent relative to
those from the panel fixed effects model. The paper further
finds that water constraints reduce yields of vegetable
crops, and other constraints, such as labor shortages, wild
animals, insects, and diseases, also reduce the yields of
cereal crops.
Palabras clave
IRRIGATION, AGRICULTURE PRODUCTIVITY, AGRICULTURE CENSUS DATA, IRRIGATON AND CROP YIELD, FARMING SCIENCE, AGRICULTURE RESEARCH