The past 40 years of psychological research on decision making has identified a number of important cognitive biases. However, the psychological study of decision making tends to focus on individuals making decisions in isolation. This article explores the social context of individual decision...

The way a choice is presented influences what a decision-maker chooses.This paper outlines the tools available to choice architects, that is anyone who present people with choices. We divide these tools into two categories: those used in structuring the choice task and those used in describing...

People are inaccurate judges of how their abilities compare to others'. Kruger and Dunning (1999; 2002) argue that most inaccuracy is attributable to unskilled performers' lack of metacognitive skill to evaluate their performance. They overestimate their standing, whereas skilled performers...

A common social comparison bias -the better-than-average-effect- is frequently described as psychologically equivalent to the individual judgment bias known as overconfidence. However, research has found hard-easy effects for each bias that yield a seemingly paradoxical reversal: Hard tasks tend...

Three studies show that negotiators consistently underestimate the size of the bargaining zone in distributive negotiations (the small pie bias) and, by implication, overestimate the share of the surplus they claim (the large slice bias). We explain the results by asymmetric disconfirmation:...