Measuring Mutual Fund Herding - A Structural Approach
36 Pages Posted: 5 Mar 2008 Last revised: 8 Jan 2015
Date Written: June 27, 2012
This paper proposes a methodological improvement to empirical studies of herd behavior based on investor transactions. By developing a simple model of trading behavior, we show that the traditionally used herding measure produces biased results. As this bias depends on characteristics of the data, it also affects the robustness of previous findings. We derive a new measure that is unbiased and shows superior statistical properties for data sets commonly used. In an analysis of the German mutual fund market, our measure provides new insights into fund manager herding that would have been undetected under the traditional statistic.
Keywords: Herding, LSV measure, mutual funds, trading behavior
JEL Classification: G11, G14, G23
Suggested Citation: Suggested Citation