Self-attribution bias in consumer financial decision-making: How investment returns affect individuals’ belief in skill

Arvid Hoffmann and Thomas Post

Journal of Behavioral and Experimental Economics (formerly The Journal of Socio-Economics), 2014, vol. 52, issue C, 23-28

Abstract: Self-attribution bias is a long-standing concept in psychology research and refers to individuals’ tendency to attribute successes to personal skills and failures to factors beyond their control. Recently, this bias is also being studied in household finance research and is considered to underlie and reinforce investor overconfidence. To date, however, the existence of self-attribution bias amongst individual investors is not directly empirically tested. That is, it remains unclear whether good (vs. bad) returns indeed make investors believe more (vs. less) strongly that skills drive their performance. Using a unique combination of survey data and matching trading records of a sample of clients from a large discount brokerage firm, we find that (1) the higher the returns in a previous period are, the more investors agree with a statement claiming that their recent performance accurately reflects their investment skills (and vice versa); and (2) while individual returns relate to more agreement, market returns have no such effect.

Keywords: Consumer financial decision-making; Household finance; Investment decisions; Self-attribution bias (search for similar items in EconPapers)
JEL-codes: D14 G02 G11 (search for similar items in EconPapers)
Date: 2014
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Citations: View citations in EconPapers (26)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:soceco:v:52:y:2014:i:c:p:23-28

DOI: 10.1016/j.socec.2014.05.005

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