Erat and Gneezy (2012) conduct an experiment to test whether people avoid lying in a situation where doing so would lead to a Pareto improvement. They conclude that many people exhibit such a "pure lie aversion." I argue that the experiment does not provide a reliable test for such an aversion,...

"In recent years, 'Nudge Units' or 'Behavioral Insights Teams' have been created in the United States, the United Kingdom, Germany, and other nations. All over the world, public officials are using the behavioral sciences to protect the environment, promote employment and economic growth, reduce...