We explore Tinbergen's fundamental insight that policymakers need at least as many policy instruments as targets. We extend this idea using a large natural field experiment in water resource management. We use social comparisons and loss-framed messages to help achieve two goals of our partner...

The situation of relative water scarcity becomes a classic problem in developing countries. This issue is not about the absence of water, but rather about the inequality with regard to access to water. Scarcity of water is a part of daily life for some though the area of abundant water...