Between September08 and June09, a period with significant market events, we surveyed UK online-brokerage customers at three-months intervals for their willingness to take risk, three-months expectations of returns and risks for the market and their own portfolio, and self-reported risk attitude....

Extreme events, by definition, cause much harm to people, property, and the natural world. Sometimes they result from the vagaries of nature, as in the case of flood, earthquake, or storm, and thus are truly the outcomes of "games against nature." In other cases they follow technological failure...

This study of 29 MBA students compares two models of risk perception for both financial and health risk stimuli. The first, inspired by Luce and Weber's Conjoint Expected Risk (CER) model, uses five dimensions: probability of gain, loss and status quo, and expected benefit and harm. The second,...

A German-language scale assessing tendencies to engage in risky behaviors, as well as perceptions of risks and expected benefits from such behaviors, is derived from an English version and validated on 532 German participants. The scale contains 40 items in six distinct domains of risk taking:...

In this paper, we examine the determinants of risk-sensitivity exhibited by humans and other animals. Our dependent measure is the proportion of respondents who choose a sure option over a risky option with equal expected value. We present a meta-analysis of human risk-preference data and...