In a within-subjects experiment we test the relation of risk preferences and charitable giving. Women not only give substantially more than men, but also show an economically significant positive correlation between risk tolerance and donation levels. We find no such correlation for men. Men and...

This paper analyzes seasonal effects and their potential drivers in charitable giving. We analyze whether donations differ between the pre-Christmas shopping season and summer. Our experiment aims to minimize confounding factors and controls for donor heterogeneity. We find that prosocial...

This paper studies motivational crowding-out effects after financial incentives are lowered. In a real-effort setting, workers receive a piece rate before financial incentives are substituted by a one-time payment. Under the fixed payment, effort is significantly lower only when preceded by...

This paper tests motivational crowding out in the domain of charitable giving. A novelty is that our experiment isolates alternative explanations for the decline of giving such as strategic considerations of decision makers. Moreover, preference elicitation allows us to focus on the reaction of...

This dissertation presents three independent essays that elicit social preferences in school children by using a combination of experimental measures and survey data. Chapter 2 consider the development of motivations for helping in informal risk-sharing networks from a sample of school children...

Der Ausgangspunkt dieser Dissertation ist der Gedanke, dass es in dem Interesse der Gesellschaft ist, prosoziales Verhalten zu fördern. Weitaus fraglicher ist, welche Strategien geeignet sind, um dieses Ziel zu erreichen. In dieser Arbeit betrachte ich drei Maßnahmen: Die Einführung von...

Diese Arbeit leistet einen Beitrag zur Forschung, die die im ökonomischen Standardmodell verwendete Annahme des eng gefassten Eigeninteresses in Frage stellt. Der erste Teil der Arbeit umfasst drei experimentelle Studien über soziale Präferenzen. Der zweite Teil der Arbeit umfasst drei...