2003
DOI: 10.3905/jpm.2003.319875
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Overconfidence Bias in International Stock Prices

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Cited by 25 publications
(13 citation statements)
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“…Consider, for example, people's tendency to overestimate their future performance. Like social projection, overconfidence in the estimation of one's performance has been studied extensively, across different domains (e.g., Klayman, Soll, Gonzalez-Vallejo, & Barlas, 1999;Scott, Stumpp, & Xu, 2003;West & Stanovich, 1997), but little research has been devoted to understanding individual differences in this bias. We suggest that personal values can explain individual differences in this bias as well: The essence of the overconfidence bias is an over-estimation of one's capabilities.…”
Section: Beyond Social Projection: Values and Other Biases In Social mentioning
confidence: 99%
“…Consider, for example, people's tendency to overestimate their future performance. Like social projection, overconfidence in the estimation of one's performance has been studied extensively, across different domains (e.g., Klayman, Soll, Gonzalez-Vallejo, & Barlas, 1999;Scott, Stumpp, & Xu, 2003;West & Stanovich, 1997), but little research has been devoted to understanding individual differences in this bias. We suggest that personal values can explain individual differences in this bias as well: The essence of the overconfidence bias is an over-estimation of one's capabilities.…”
Section: Beyond Social Projection: Values and Other Biases In Social mentioning
confidence: 99%
“…These included the ability of fundamental/price ratios and market value to forecast returns, and the domination of beta by those variables in some studies. Scott, Stumpp and Xu (2003) found consistent investor overconfidence behavior across different countries and trading environments. Biais, Hilton, Mazurier and Pouget (2005) empirical results showed that miscalibration reduced and self-monitoring enhanced trading performance.…”
Section: Literature Reviewmentioning
confidence: 68%
“…Uma descoberta especificamente relevante para finanças é que o grau de excesso de confiança varia entre os indivíduos (De Bondt & Thaler, 1995). Um número considerável de pesquisas em finanças sugere que existem indivíduos excessivamente confiantes sobre as suas habilidades de realizar julgamentos sobre o futuro (Scott, Stumpp & Xu, 2003).…”
Section: Excesso De Confiançaunclassified
“…Mesmo que em sua maioria as pessoas sejam boas em fazer estimativas e previsões sobre eventos futuros, o excesso de confiança afeta a precisão das previsões realizadas, levando a erros de julgamentos e, por sua vez, a más decisões (Hammond et al, 1998), ou seja, o excesso de confiança é considerado um viés nos julgamentos realizados. Scott et al (2003) definem uma pessoa superconfiante como alguém que acredita fortemente em suas próprias avaliações sobre eventos futuros. Já De Bondt e Thaler (1995) comentam que o achado mais robusto na psicologia do julgamento é que as pessoas excessivamente confiantes superestimam a confiabilidade dos seus conhecimentos, o que influencia negativamente seus julgamentos e decisões.…”
Section: Excesso De Confiançaunclassified
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