Mostrar código-fonte de Enviesamento de confirmação

O '''Enviesamento de confirmação''' (em inglês, confirmation bias) descreve a tendência que as pessoas têm para procurar e dar mais atenção a informação que confirma a sua opinião já formada, ao mesmo tempo que ignora tudo o que contradiga essa opinião. É um tipo de pensamento selectivo.

Este efeito leva a que os investidores/traders possam manter posições mesmo quando a informação que estão a obter já contradiz a tese que os levou a tomar essas posições, isto desde que ainda exista alguma informação, mesmo que menos relevante, que pareça validar essa tese.

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