We investigate the influence of overconfidence and risk aversion on individual financial decision making in the experimental asset markets of the Smith, Suchanek and Williams (1988) type, with no informational asymmetries. Subjects, based on their pre-experimental overconfidence scores, were...

This paper investigates the relationship between market overconfidence and occurrence of stock-price bubbles. Sixty participants traded stocks in ten experimental asset markets. Markets were constructed on the basis of subjects’ overconfidence: The most overconfident subjects form high...

This article illustrates the difficulties in quantifying overconfidence in experimental finance and outlines a procedure for the development of a reliable overconfidence measurement instrument. Following the suggested two-stage procedure a sample measure of overconfidence is developed. First a...