Enviesamento conservador

Conservatism bias (enviezamento conservador) é a tendência das pessoas para mudarem muito lentamente de opinião em resposta a factos recentes.

Este efeito leva a uma subreacção das pessoas a surpresas, o que leva a que os activos tendam a continuar no sentido dessas surpresas (positivas ou negativas), uma vez que na reacção inicial não incorporam todo o significado da surpresa. Ou seja, este enviezamento produz momentum no mercado.

Relacionado (e reforçando) este efeito, existe a tendência das pessoas terem maior dificuldade em mudar de opinião após terem tornado a sua opinião pública.

Referências

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