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Master thesis . 2011
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Os indicadores de confiança, o sentimento do investidor e o mercado de capitais português

Authors: Sequeira, Elizabetth da Costa;

Os indicadores de confiança, o sentimento do investidor e o mercado de capitais português

Abstract

Este estudo tem como objectivo encontrar uma medida do sentimento do investidor individual português, utilizando como proxy a confiança do consumidor, tal como alguns estudos das finanças comportamentais sugerem. Primeiro, efectuamos uma comparação entre a confiança do consumidor da Comissão Europeia (CE) e do Instituto Nacional de Estatística (INE) com o índice de confiança dos economistas do Instituto Superior de Economia e Gestão (ISEG), relacionando em seguida estes três indicadores com o mercado de capitais português (PSI-20). Os resultados sugerem uma maior relação do indicador de confiança da CE com o PSI-20. Posteriormente, separamos este indicador de confiança em duas componentes. Uma relacionada com os fundamentos económicos e outra que denominamos como a nossa medida do sentimento do investidor individual português. Os resultados mostram que, apenas as variações do mercado de capitais português influenciam o sentimento do investidor, sugerindo que a medida por nós utilizada para o sentimento do investidor parece não ser uma medida óptima para captar as ondas de optimismo e pessimismo verificadas no mercado de capitais português.

The purpose of this study is to find a measure of the Portuguese individual investor sentiment using the consumer confidence as a proxy, as some of the behavior finance literature suggest. First we analyzed if the consumer confidence index of the European Commission (EC) and the one from the Portuguese National Institute of Statistics (INE) were different from the economist's confidence index of the School of Economics and Management (ISEG) and we also studied the relationship between those three indexes and the Portuguese stock market index (PSI-20). We found evidence that the consumer confidence index of EC is the one that has the strongest relationship with PSI-20. Then we split this index into two components. One related to economic fundamentals and the other we called our measure of Portuguese individual investor sentiment. The results show that only the stock market has an influence in the investor sentiment, suggesting that our measure of sentiment is not the best measure to forecast the waves of investor optimism and pessimism in Portugal.

Mestrado em Finanças

Country
Portugal
Keywords

confiança do consumidor, investor sentiment, mercado de capitais, consumer confidence, sentimento do investidor, stock market

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selected citations
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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).
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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.
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