Why do individuals volunteer their time even when recipients receive far less value than the donor's opportunity cost? Previous models of altruism that focus on the overall impact of a gift cannot rationalize this behavior, despite its prevalence. We develop a model that relaxes this assumption,...

We conduct two lab experiments and one field experiment to investigate demand for consumption agency in married couples. The evidence we uncover is consistent across all three experiments. Subjects are often no better at guessing their spouse's preferences than those of a stranger, and many...