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Análise Psicológica
Article . 2012 . Peer-reviewed
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Análise Psicológica
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Escolha intertemporal: Enquadramento, sinal e diferimento das suas consequências

Authors: Carvalho,Pedro Le Mattre de; Scholten,Marc; Pimentel,Duarte; Gonçalves,Gui; Correia,Manuela Faia;

Escolha intertemporal: Enquadramento, sinal e diferimento das suas consequências

Abstract

De acordo com o modelo normativo da escolha intertemporal, o Modelo de Utilidade Descontada (Samuelson, 1937), a utilidade de uma consequência futura é descontada exponencialmente consoante o diferimento. Há ampla evidência de que as pessoas não cumprem este pressuposto.Neste estudo, 280sujeitos realizaram uma tarefa de emparelhamento (ou matching) de forma a verificar a presença de uma nova anomalia ao desconto exponencial, bem como quatro anomalias mais conhecidas na literatura: O efeito de diferimento, o efeito de magnitude, o efeito de sinal e a assimetria adiamento--adiantamento. A nova anomalia é uma interacção entre o enquadramento, o sinal, e o diferimento das consequências: Em ganhos, o efeito de diferimento é mais pronunciado num enquadramento de adiamento do que num enquadramento de adiantamento; em perdas, o inverso acontece.Todas as anomalias foram verificadas. Avançamos uma explicação do efeito interactivo em termos de sensibilidade decrescente a diferimentos.

Country
Portugal
Keywords

Delay, Escolha intertemporal, Interaction, Delay-speedup, Intertemporal choice, Magnitude, Sinal, Adiamento-adiantamento, Interacção, Diferimento, Sign

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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