Glaser, Markus; Weber, Martin - C.E.P.R. Discussion Papers - 2003
hypothesis by correlating individual overconfidence scores with several measures of trading volume of individual investors … was designed to measure various facets of overconfidence (miscalibration, the better than average effect, illusion of … performance trade more. Measures of miscalibration are, contrary to theory, unrelated to measures of trading volume. This result …