History offers many examples of dictators who worsened their behavior significantly over time (like Zimbabwe's Mugabe) as well as dictators who displayed remarkable improvements (like Rawlings of Ghana). The authors show that such mutations can result from rational behavior when the dictator's...

Support for economic reforms has often shown puzzling dynamics: many reforms that began successfully lost public support. This paper shows that learning dynamics can rationalize this paradox because the process of revealing reform outcomes is an example of sampling without replacement. This...