This study reports data from a field experiment that was conducted to investigate the relevance of gift-exchange for charitable giving. Roughly 10,000 solicitation letters were sent to potential donors in the experiment. One third of the letters contained no gift, one third contained a small...

We report an experiment comparing sequential and simultaneous contributions to a public good in a quasi-linear two-person setting (Varian, Journal of Public Economics, 1994). Our findings support the theoretical argument that sequential contributions result in lower overall provision than...

Decisions to donate time or money for charitable purposes are typically seen as make-or-buy decisions, implying that there should be a clear distinction between individuals engaging in one of these two forms of giving and that this distinction should be somehow linked to opportunity costs. But...

This paper studies how a preference for consistency can affect economic decision-making. We propose a two-period model where people have a preference for consistency because consistent behavior allows them to signal personal and intellectual strength. We then present three experiments that study...

Most professional economists believe that economists in general are more selfish than other persons and that this greater selfishness is due to economics education. This paper offers empirical evidence against this widely held belief. Using a unique data set about giving behavior in connection...

We investigate whether the field of study influences university students' political attitudes. To disentangle self-selection from learning effects, we first investigate whether the fields of study chosen by the incoming students correlate with their political attitudes. In a second step we...