Optimism-bias is inconsistent with the independence of decision weights and payoffs found in models of choice under risk, such as expected utility theory and prospect theory. Hence, to explain the evidence suggesting that agents are optimistically biased, we propose an alternative model of risky...

Since the emergence of neoclassical economics, individual decision making has been viewed largely from an outcome-maximizing perspective. Building on previous work, the authors suggest that when people make payment decisions, they consider not only their preferences for different alternatives...

A prevalent stereotype is that people become less risk taking and more cautious as they get older. However, in laboratory studies, findings are mixed and often reveal no age differences. In the current series of experiments, we examined whether age differences in risk seeking are more likely to...