This paper tests the effect of a matching mechanism on donations in a controlled field experiment. We match the donations of students at the University of Zurich who, each semester, have to decide whether they wish to contribute to two Social Funds. Our results support the hypothesis that a...

This paper tests the effect of a matching mechanism on donations in a controlled field experiment. We match the donations of students at the University of Zurich who, each semester, have to decide whether they wish to contribute to two Social Funds. Our results support the hypothesis that a...

Typically, laboratory experiments suffer from homogeneous subject pools and self-selection biases. The usefulness of survey data is limited by measurement error and by the questionability of their behavioral relevance. Here we present a method integrating interactive experiments and...