We conduct a field experiment to measure cooperation among groups of recreational fishermen at a privately owned fishing facility. The parameters are chosen so that group earnings are greater when group members catch fewer fish, as in the Voluntary Contributions Mechanism (VCM). In a manner...

Peer-to-peer sanctions increase cooperation in multi-person social dilemmas (Fehr & Gachter (2000)), but not when subjects have the option to retaliate (Nikiforakis (2008)). One-shot peer-to-peer rewards have been found to enhance efficiency too (Vyrastekova & van Soest (2008), Rand et al....

We report a framed field experiment, in which we study the effectiveness of punishment and reward in sustaining cooperation in a social dilemma. Punishments tend to be directed at non-cooperators and rewards are assigned by those who are relatively cooperative. In contrast to the results...

We study decision problems where (a) preference parameters are de.ned to include psychological/moral considerations and (b) there is a feedback effect from chosen actions to preference parameters. In a standard decision problem the chosen action is required to be optimal when the feedback effect...

Standard Economics assumes that decision makers carefully reflect and meditate on each alternative. Grounded on evidence from Psychology this thesis relaxes this assumption and develops a theoretical framework with imperfect reflection. We analyse the implications for both Positive and Normative...

Green technological progress bears a strong potential to alleviate climate change, but its utilization is contingent on factors which are by nature impossible to anticipate or predict. Developing stochastic optimisation models, we explore how the decision to invest in research and development...

Many conservation programs offer financialcompensation to farmers in exchange for socially desiredservices, such as soil conservation or biodiversity protection.Realization of the conservation objective at minimum costrequires payments to just cover the extra costs incurred byeach individual...