a strong decrease in spitefulness with increasing age. Egalitarianism becomes less frequent, and altruism much more … allocation recipient as either an in-group or an out-group member, we can also study how parochialism develops with age. We find … prominent, with age. Women are more frequently classified as egalitarian than men, and less often as altruistic. Parochialism …

obligations. We present evidence from a laboratory tax experiment suggesting that the effects of complexity on compliance are …

this end we develop a simple dynamic principal-agent model where both players may have feelings of altruism or spite toward …

. We study in an experiment with 525 teenagers how both birth order and siblings’ sex composition affect risk, time and … social preferences. We find that second born children are typically less patient, less risk averse, and more trusting …. However, siblings’ sex composition interacts importantly with birth order effects. Second born children are more risk taking …

sinking of the RMS Titanic as a quasi-natural experiment do provide behavioural evidence which is rare in such a controlled … and life threatening event. The empirical results support that social norm such as women and children first" survive in …

and children who had a higher probability of being saved, not men. Likewise, people traveling in first class had a better …