Experimental social scientists working at research-intensive institutions deal inevitably with subjects who have most likely participated in previous experiments. It is an important methodological question to know whether participants that have acquired a high level of lab-sophistication show...

Experimental social scientists working at research-intensive institutions deal inevitably with subjects who have most likely participated in previous experiments. It is an important methodological question to know whether participants that have acquired a high level of lab-sophistication show...

We study the effect of childbirth on local and non-local employment dynamics for both men and women using Belgian social security and geo-location data. Applying an event-study design that accounts for treatment effect heterogeneity, we show that 75 percent of the effect of the birth of a first...