We study with a sample of 1,070 primary school children, aged seven to eleven years, how altruism in a donation … theories of reciprocal altruism that provide a cornerstone to understand human social behavior. We find that higher risk …-linear. We confirm earlier results that altruism increases with age during childhood and that girls are more altruistic than boys …

strong decrease in spitefulness with increasing age. Egalitarianism becomes less frequent, and altruism much more prominent …

We study in a sample of 1,070 primary school children, aged seven to eleven years, how altruism in a donation … theories of reciprocal altruism that provide a cornerstone for understanding human social behavior. We find that higher risk …-linear. We confirm earlier results that altruism increases with age during childhood and that girls are more altruistic than boys …

We study with a sample of 1,070 primary school children, aged seven to eleven years,how altruism in a donation …

We study with a sample of 1,070 primary school children, aged seven to eleven years, how altruism in a donation … theories of reciprocal altruism that provide a cornerstone to understand human social behavior. We find that higher risk …-linear. We confirm earlier results that altruism increases with age during childhood and that girls are more altruistic than boys …

a strong decrease in spitefulness with increasing age. Egalitarianism becomes less frequent, and altruism much more …

a strong decrease in spitefulness with increasing age. Egalitarianism becomes less frequent, and altruism much more …

a strong decrease in spitefulness with increasing age. Egalitarianism becomes less frequent, and altruism much more … first becomes significant in the teenage years. -- other-regarding preferences ; egalitarianism ; altruism ; spite …