Farmers often buy water using fixed fees—rather than with marginal prices. We use two randomized controlled trials in Bangladesh to study the relationship between prices, adoption of a water-saving technology, and usage. Our first experiment shows that technology only saves when farmers face second finds an encouragement voluntarily convert hourly pumping charges does not save water. Taken toge...

Global water use for food production needs to be reduced remain within planetary boundaries, yet the financial feasibility of crucial measures reduce is poorly quantified. Here, we introduce a novel method compare costs conservation with added value that reallocation savings might generate if used expansion irrigation. Based on detailed accounting through high-resolution hydrology-crop model, m...