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...

This article illustrates the difficulties of quantifying overconfidence in economic experiments and suggests a procedure for the development of the reliable overconfidence measurement instrument (test). Following the suggested two-stage procedure a sample measure of overconfidence is developed....