We studied how communication media affect trust game play. Three popular media were considered: traditional face-to-face, Facebook groups, and anonymous online chat. We considered post-communication changes in players' expectations and preferences, and further analyzed the contents of group...

While Randomized Controlled Trials and lab-in-the-field experiments have become more common in development economics in recent years, the rigor and control of laboratory-based experiments has so far been difficult to access in developing countries. Here we describe the use of various cognitive...