What makes you a successful cooperator? Using data from the British television game show ``Golden Balls'' we analyze a prisoner's dilemma game and its pre-play. We find that players strategically select their partner for the PD, e.g., they bear in mind whether contestants lied. Players'...

We present online-experimental evidence that challenges the generalizability of established results on subsidizing giving by considering a "quantity donation" scheme. We define this scheme as one in which donors choose how many units of a charitable good to fund, rather than the amount of money...

The Paris Agreement aims at limiting the global average temperature increase to well below 2êC above preindustrial levels. A key component of the agreement are "nationally determined contributions" (NDC). For this, non-state actors such as civil society groups, economic actors, and subnational...

This paper measures the relative importance of "conditional cooperation" and "unconditional cooperation" in a large public goods experiment conducted in Mali. We use expectations about total public goods provision to estimate a structural choice model with heterogeneous preferences. While...

Latent payback is a natural element of social interactions: Non-cooperators face substantial threats of not being supported in situations of dire need, or of being punished in seemingly unrelated situations. In the controlled environment of the laboratory, we experimentally explore the effects...

The provision of public goods often relies on voluntary contributions and cooperation. While most of the experimental literature focuses on individual contributions, many real-world problems involve the formation of institutions among subgroups (coalitions) of players. International agreements...

We analyze the interplay of group identity and inter-group conflict in a contest where each of two conflicting groups can develop either a group or an individualistic identity. Contest structures impact on the adoption of identities which themselves influence behavior in the contest. We show the...

Social preferences for the punishment of free riders are critical for generating cooperative behavior in human society. Focusing on the receiving fees of Japan´s public broadcaster, this study analyses how punishment of free riders, that is, the strengthening of legal responses against them,...

I analyze the effects of ethnic divisions on the provision of public goods. Using OpenStreetMap data, I construct a new global dataset of locations of public amenities, such as schools, hospital and libraries. I allow for the possibility that the data may be systematically incomplete using two...