Previous studies have shown that individuals are less likely to help a person in need when there are "bystanders" present who can also offer help. We designed an experiment to re-examine this "bystander effect" using modified dictator games. We find lower giving rates in the presence of...

We measure the social norms of sharing income with kin and neighbors in villages in Kenya. We find a plurality of norms: from a strict norm prohibiting wealth accumulation to a norm facilitating saving. Several individual and social network characteristics predict the norms upheld; the pro-saving...

Previous studies have shown that individuals are less likely to help a person in need when there are "bystanders" present who can also offer help. We designed an experiment to re-examine this "bystander effect" using modified dictator games. We find lower giving rates in the presence of...

Can we use the lens of dual-system theories to explain altruistic behavior? In recent years this question has attracted the interest of both economists and psychologists. We contribute to this emerging literature, by reporting both the results of a meta-study of the literature and a new...

In this paper we show that making choices that involve conflicts between self-interest and otherregarding concerns may deplete cognitive resources and willpower and thus reduce individuals' ability to exert self-control. In a lab experiment we use a series of modified dictator games to...

In this paper we show that making choices that involve conflicts between self-interest and otherregarding concerns may deplete cognitive resources and willpower and thus reduce individuals' ability to exert self-control. In a lab experiment we use a series of modified dictator games to...

Can we use the lens of dual-system theories to explain altruistic behavior? In recent years this question has attracted the interest of both economists and psychologists. We contribute to this emerging literature, by reporting both the results of a meta-study of the literature and a new...