Altruism, giving and pro-social conduct, and reciprocity, are the basis of the existence and performance of societies … (which they sometimes also create); and in charity and specific organizations. Altruism has various origins: it can be … hedonistic or natural altruism in empathy, affection, sympathy, emotional contagion, pity, and compassion; or normative altruism …

. In some contexts, these two forms of relatedness interact. Caring about others can conveniently be labeled altruism … deprivation. I provide examples of domains in which the incorporation of altruism and relative deprivation can point to novel … consideration of relative deprivation can substitute for the prevalence of altruism, and vice versa. I conclude that this is a …

We study exchanges between three overlapping generations with non-dynastic altruism. The middleaged choose informal …

principles (religious beliefs, altruism, patriotism), emotions (envy, wrath, shame, regret, or guilt) or simply by an attempt to …