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Working Paper
The impact of group membership on cooperation and norm enforcement: evidence using random assignment to real social groups
Due to incomplete contracts, efficiency of an organization depends on willingness of individuals to take non-selfish actions, such as cooperating when there is no incentive to do so or punishing inefficient actions by others. Organizations also constitute a social boundary, or group. We investigate whether this social aspect of organizations has an important benefit? fostering unselfish cooperation and norm enforcement within the group?but also whether there is a dark side, in the form of hostility between groups. Our experiment provides the first evidence free from the confounding effect of ...
Working Paper
Do people behave in experiments as in the field?: evidence from donations
Laboratory experiments are an important methodology in economics, especially in the field of behavioral economics. However, it is still debated to what extent results from laboratory experiments can be applied to field settings. One highly important question with respect to the external validity of experiments is whether individuals act the same in experiments as they would in the field. ; This paper presents evidence on how individuals behave in donation experiments and how the same individuals behave in a naturally occurring decision situation on charitable giving. The results show that ...
Working Paper
A survey of economic theories and field evidence on pro-social behavior
In recent years, a large number of economic theories have evolved to explain people?s pro-social behavior and the variation in their respective behavior. This paper surveys economic theories on pro-social behavior and presents evidence ? mainly from the field ? testing these theories. In addition, the survey emphasizes that institutional environment might significantly interact with pro-social preferences and explain some of the variation in observed pro-social behavior.