We show that Rand et al. (2012) and Rand et al. (2014)—who argue that cooperation is intuitive—provide an incorrect interpretation of their own data. They make the mistake of inferring intuition from relative decision times alone, without taking into account absolute decision times. We...

We use a natural field experiment to investigate the hypothesis that generosity is partly involuntary, by examining whether individuals tend to avoid opportunities to act generously. In Sweden, new recycling machines for bottles and cans with an option of donating the returned deposit to charity...

The objective of this paper is to study if taxpayers behave in a loss averse manner when filing their tax returns. This is important for tax design but also for understanding human behavior in general. The predictions of prospect theory can be contrasted to those of expected utility theory. We...

A growing literature in economics examines the development of preferences among children and adolescents. We combine a repeated dictator game with treatments that either provides participants with information about the average behavior of others or not. In a sample of 384 children aged 5-17, we...

Much evidence suggests that people are concerned with their relative consumption, i.e., their consumption in relation to the consumption of others. Yet, the social costs of conspicuous consumption have so far played little (or no) role in savings-based indicators of sustainable development. The...

This paper derives Pareto efficient policy rules for the provision of national as well as global public goods in a two-country world, where each individual cares about relative consumption within as well as between countries. Furthermore, we compare these policy rules with those that follow from...

Reciprocity can be a powerful motivation for human behaviour. Scholars argue that it is relevant in the context of private provision of public goods. We examine whether reciprocity can resolve the associated coordination problem. The interaction of reciprocity with cost-sharing is critical....

Recent research has shown that women shy away from competition more often than men. We evaluate experimentally three alternative policy interventions to promote women in competitions: Quotas, Preferential Treatment, and Repetition of the Competition unless a critical number of female winners is...

By using a choice experiment, this paper focuses on citizens’ preferences for effort-sharing rules of how carbon abatement should be shared among countries. We find that Swedes do not rank the rule favoring their own country highest. Instead, they prefer the rule where all countries are...

We analyze the impacts of birth order and presence/absence of siblings on risk preferences with respect to economic, health/safety, and sport/lifestyle related risks. We study both the answer to a hypothetical lottery question and stated risky behavior and find that middle-borns are consistently...