How Do Decision Frames Influence the Stock Investment Choices of Individual Investors?
Sonya S. Lim
DePaul University - Department of Finance
University of Miami - School of Business Administration
EFA 2005 Moscow Meetings
This study examines whether the framing mode (narrow versus broad) influences the stock investment decisions of individual investors. Motivated by the experimental evidence, which suggests that separate decisions are more likely to be narrowly framed than simultaneous decisions, we propose trade clustering as a proxy for narrow framing. Using this framing proxy, we show that investors who execute more clustered trades exhibit weaker disposition effects and hold better diversified portfolios. We also find that the degree of trade clustering is related to investors' stock preferences and portfolio returns. Collectively, the evidence indicates that the choice of decision frames is likely to be an important determinant of investment decisions.
Number of Pages in PDF File: 31
Keywords: Narrow framing, trade clustering, disposition effect, portfolio diversification, prospect theory
JEL Classification: G11, G12
Date posted: August 7, 2005