Overconfidence and trading volume
Markus Glaser and Martin Weber

The Geneva risk and insurance review
Volume 32,
下载链接：http://www.springerlink.com/content/75862410415816k8/
Abstract
Theoretical models predict that overconfident investors will trade more than rational investors. We directly test this hypothesis by correlating individual overconfidence scores with several measures of trading volume of individual investors. Approximately 3,000 online broker investors were asked to answer an internet questionnaire which was designed to measure various facets of overconfidence (miscalibration, volatility estimates, better than average effect). The measures of trading volume were calculated by the trades of 215 individual investors who answered the questionnaire….