There is growing interest in using messaging to drive prosocial behaviors, which contribute to investment in public goods. The authors worked with a leading nongovernmental organization in Peru to randomize nine different prorecycling messages that were crafted on the basis of best practices,...

Many financial institutions in developing countries offer savings products. Yet, little has been done to assess systematically and quantitatively the relative merits of different product designs. This paper first examines different designs that provide incentives to clients to commit to save....

In much of the developing world, many farmers grow crops for local or personal consumption despite export options that appear to be more profitable. Thus many conjecture that one or several markets are missing. This paper reports on a randomized controlled trial conducted by DrumNet in Kenya...