Stock Investments at Work
Hans K. Hvide
University of Bergen - Department of Economics; University of Aberdeen - Business School; Centre for Economic Policy Research (CEPR); Institute for the Study of Labor (IZA)
University of Zurich - Department of Banking and Finance; Swiss Finance Institute
January 17, 2014
Stock market investment decisions of individuals are positively correlated with that of co-workers. Sorting of unobservably similar individuals to the same workplaces is unlikely to explain our results, as evidenced by the investment behavior of individuals that move between plants. Purchases made under stronger co-worker purchase activity are not associated with higher returns. Moreover, social interaction appears to drive the purchase of within-industry stocks; an investment mistake. Overall, our results suggest a strong influence of co-workers on investment choices, but not an influence that improves the quality of investment decisions.
Number of Pages in PDF File: 58
Keywords: Individual investors, peer effects, social interaction, investment decisions, stock selection
JEL Classification: G02, G11
Date posted: April 24, 2013 ; Last revised: April 22, 2015
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