This paper compares the effects of two leadership styles: leading by pre-game communication and leading by example using an iterated voluntary contribution game. We find that pre-game communication increases the level of individual contributions in the game and has essentially the same impact on...

Since Mancur Olson's "Logic of collective action" it is common conviction in social sciences that in large groups the prospects of a successful organization of collective actions are rather bad. Following Olson's logic, the impact of an individual's costly contribution becomes smaller if the...

Since Mancur Olson's “Logic of collective action” it is common conviction in social sciences that in large groups the prospects of a successful organization of collective actions are rather bad. Following Olson's logic, the impact of an individual's costly contribution becomes smaller if the...

In a public-good experiment with heterogeneous endowments, we investigate if and how the contribution level as well as the previously observed "fair-share" rule of equal contributions relative to oneś endowment (Hofmeyr et al., 2007; Keser et al., 2014) may be influenced by minimum-contribution...

The dynamics of behavior observed in standard public-good experiments can be explained by imperfect conditional cooperation combined with social learning (Fischbacher and Gächter, 2010). But it is unclear what determines first-round contributions. We argue that first-round contributions depend...

We present an experiment on voluntary contributions to a public good. The game has a dominant strategy solution in the interior of the strategy space. In the experiment we observe significant over-contribution. This result is similar to those of the typical corner solution experiments. --...

This dissertation extends the understanding of asymmetric group behavior in the provision of public goods. Previous studies, using an asymmetric framework, have so far focused on situations where all players profit form the social optimum. The discussion in the first paper breaks with this...