The Behavior of Individual Investors
54 Pages Posted: 27 Jun 2011 Last revised: 6 Jan 2012
Date Written: September 7, 2011
Abstract
We provide an overview of research on the stock trading behavior of individual investors. This research documents that individual investors (1) underperform standard benchmarks (e.g., a low cost index fund), (2) sell winning investments while holding losing investments (the “disposition effect”), (3) are heavily influenced by limited attention and past return performance in their purchase decisions, (4) engage in naïve reinforcement learning by repeating past behaviors that coincided with pleasure while avoiding past behaviors that generated pain, and (5) tend to hold undiversified stock portfolios. These behaviors deleteriously affect the financial well being of individual investors.
Keywords: individual investors
JEL Classification: D12, G11, H31
Suggested Citation: Suggested Citation
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