Although researchers have documented many instances of crowd wisdom, it is important to know whether some kinds of judgments may lead the crowd astray, whether crowds’ judgments improve with feedback over time, and whether crowds’ judgments can be improved by changing the way judgments are...

Four studies examined the willingness of young, healthy individuals to take drugs intended to enhance their own social, emotional, and cognitive traits. We found that people were much more reluctant to enhance traits believed to be more fundamental to self-identity (e.g., social comfort) than...

Consumers prefer to watch television programs without commercials. Yet, in spite of most consumers’ extensive experience with watching television, we propose that commercial interruptions can actually improve the television‐viewing experience. Although consumers do not foresee it, their...

Influencing behavior change is an ongoing challenge in psychology, economics, and consumer behavior research. Building on previous work on commitment, self-signaling, and the principle of consistency, a large, intensive field experiment (N = 2,416) examined the effect of hotel guests’...

Why do different people give to different causes? We show that the sympathy inherent to a close relationship with a victim extends to other victims suffering from the same misfortunes that have afflicted their friends and loved ones. Both sympathy and donations are greater among those related to...