Why do different people give to different causes? We argue that the sympathy inherent to a close relationship with a victim extends to other victims, leading benefactors to prefer charities that help those suffering from the misfortunes that have affected their friends and loved ones. Study 1, a...

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...

Online social networks are used by hundreds of millions of people every day, but little is known about their effect on behavior. In five experiments, we demonstrate that social network use enhances self-esteem in users who are focused on close friends (i.e., strong ties) while browsing their...