Fig. 2. Crop output (left axis) response to regional irrigation shortfalls (right axis). Output change is computed as the weighted-average of each individual crop’s output
change. The weight is determined by the crop’s contribution to total output value. Regional change in irrigation availability is computed as the weighted-average of basinlevel
changes. The share is determined by each basin’s contribution to the region’s output value added by water. Bar width is proportional to the share of output value that is
from irrigated crops in the region. Error bars associated with output indicate the 95% confidence interval of the mean for a normal distribution.