Behavioral Biases and Investor Performance

12 Pages Posted: 11 Nov 2011

See all articles by Todd Feldman

Todd Feldman

San Francisco State University - College of Business

Date Written: November 10, 2011


Research indicates that individual investors trade excessively and underperform the market indices, Barber and Odean (2000). The purpose of this paper is to help explain which behavioral biases, if any, can explain this result using a simulation approach. Results indicate that putting too much weight on the current environment, anchoring, is the largest factor in explaining individual investor underperformance. In addition, loss aversion is the largest factor to explain excessive trading. When these two biases are combined trading activity and underperformance are heightened.

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Keywords: Behavioral finance, agent-based models, financial markets

JEL Classification: C63, G01, G10

Suggested Citation

Feldman, Todd, Behavioral Biases and Investor Performance (November 10, 2011). Algorithmic Finance (2011), 1:1, 45-55, Available at SSRN:

Todd Feldman (Contact Author)

San Francisco State University - College of Business ( email )

San Francisco, CA
United States

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