We run a public good experiment in the field and in the lab with (partly) the same subjects. The field experiment is a … true natural field experiment as subjects do not know that they are exposed to an experimental variation. We can show that … subjects' behavior in the classic lab public good experiment correlates with their behavior in the structurally comparable …

To investigate the external validity of laboratory results, we combine a public good experiment with three treatments … in a field experiment. One treatment offers the opportunity to free-ride, the other two are placebo treatments. We …

scalable five-day text message educational course. We assess the impact of the courses in a field experiment with approximately …-up experiment approximately two months later, 88% of the treatment effect of the three courses on misinformation sharing persists …

offer is made right before the train departure. -- Natural field experiment ; bargaining ; focal point ; equal split ; agent …

We investigate the determinants of giving in a lab-in-the-field experiment with large stakes. Study participants in … that must be in cash. Qualitative post-experiment responses suggest that this effect is driven by a desire to control how …