Despite well-meaning intentions, people rarely allocate their charitable donations in the most cost-effective way possible. The manner in which cost-effectiveness information is presented can be a contributing factor. In four studies (N = 2,725), when we inform participants of the cost of a unit...

Past research in gift giving has largely treated asymmetries between the types of gifts givers give and the ones recipients prefer to receive as unintentional errors on the part of givers. In contrast, we show that givers sometimes intentionally bypass gifts that they know will bring the most...