Overconfidence Effect
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Risco de decisÃo do investidor: uma investigaÃÃo dos efeitos autonfianÃa excessiva e competÃncia
We set an experiment to track both the overconfidence and competence effects. Overconfidence is the cognitive illusion that people tend to think they are better investors than they really are. And the competence illusion refers to peopleâs willingness to bet on their own subjective judgments if compared to a fifty-fifty bet. Questionnaires were distributed
Publicado em: 2007
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2. Vieses cognitivos nas decisÃes de investimentos: uma anÃlise do excesso de confianÃa, aversÃo à ambigÃidade e efeito disposiÃÃo sob a perspectiva das finanÃas comportamentais
This study makes a revision of the theories of behavioral finances and through one survey next to students of the Federal University of Pernambuco, with the application of questionnaires based on the models of Kahneman and Tversky (1979), and Glaser and Weber (2003), and of a simulation of investments based on the software created by Macedo Jr (2003). The re
Publicado em: 2007
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3. Processo de tomada de decisão do investidor individual brasileiro no mercado acionário nacional: um estudo exploratório enfocando o efeito disposição e os vieses da ancoragem e do excesso de confiança
Among the fields of study of behavioral finance is the identification of how emotions and cognitive errors can influence the decision process of investors. Published works in experimental psychology and behavioral finance indicated the use of heuristics behavio rs and their consequent biases in the decision process of agents participating in the financial ma
Publicado em: 2007