Time Bias and Altruism

Abstract We are typically near-future biased, prioritising our present and near-future interests over our own distant-future interests. This bias can be directed at others as well, prioritising their present and near-future interests over their distant-future interests. I argue that, given these biases, and given a plausible limit on the extent to which we can permissibly prioritise our present interests over the present interests of strangers, we are morally required to prioritise the present interests of strangers over our distant-future interests. I also argue that a similar conclusion holds even if we are near biased only towards ourselves, and regardless of whether this bias is rational. And I show that my conclusions have interesting implications for the ethics of charitable giving, because they generate moral pressure to donate to charity those funds that would otherwise have gone into our long-term savings.