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...

Building on previous research in economics and psychology, we propose that the costliness of initial prosocial behavior positively influences whether that behavior leads to consistent future behaviors. We suggest that <i>costly</i> prosocial behaviors serve as a signal of prosocial identity and that...

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&hyphen;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’...

Based on contrast effects studies from psychology, we predicted that movers arriving from more expensive cities would rent pricier apartments than those arriving from cheaper cities. We also predicted that as people stayed in their new city they would get used to the new prices and would...

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...

Previous experimental research has shown that people's decisions can be influenced by options they have encountered in the past. This paper uses PSID data to study this phenomenon in the field, by observing how long people commute after moving between cities. It is found, as predicted, that (i)...

Does current utility bias predictions of future utility for high stakes decisions? Here I provide field evidence consistent with such Projection Bias in one of life's most thought-about decisions: college enrolment. After arguing and documenting with survey evidence that cloudiness increases the...