To estimate the causal effect of conscription on the probability to obtain a university degree, we use a regression-discontinuity design associated with the introduction of conscription in Germany. There is evidence that conscription increased the likelihood of completing higher education.

We identify the causal effect of compulsory military service on conscripts’ subsequent labor-market outcomes by exploiting the regression-discontinuity design of the military draft in Germany during the 1950s. Consistent estimates of military service on lifetime earnings, wages, and days of...

Based on multivariate linear regression models, we analyze the effect of the lunar cycle and the number of sunspots occurring on a particular day on the number of births using social security data and controlling for a number of other potential confounders. The daily numbers of births between...

Summary Using data on the valuation of Christmas gifts received by students enrolled in different fields at a German university, we investigate whether the endowment effect, the difference between asking and bidding prices, differs between males and females, students of economics and other...

Volunteering plays a prominent role in the charitable provision of goods and services, yet we know relatively little about why individuals spend time and money to the charity. Assuming that volunteering is a consumption good, we analyze the determinants of individuals' charitable cash donations...

We test whether financial incentives have an effect on weight reduction in a randomized controlled trial involving 700 obese persons assigned to three experimental groups. While two treatment groups obtain €150 and €300, respectively, for achieving an individually assigned target weight...

This paper examines the sustainability of weight loss achieved through cash rewards and, for the first time, the potential of monetary incentives to prevent weight cycling. In a three period randomized controlled trial, about 700 obese persons were assigned to two treatment groups, which were...