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Médias et sentiment sur les marchés actions européens - Impact of sentiment media on European stock markets

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Abstract

(VF) Dans cet article, nous développons une nouvelle mesure du sentiment des investisseurs en Europe à partir d’une analyse de contenus d’articles issus du Financial Times. Nous trouvons que notre mesure du sentiment influence la performance boursière des entreprises difficiles à évaluer et à arbitrer. Un niveau élevé de sentiment pessimiste (optimiste) est suivi par de fortes (faibles) rentabilités futures, ce qui vient renforcer l’approche de la finance comportementale. Par ailleurs, nous montrons que la culture nationale influence le lien entre sentiment des investisseurs et rentabilités boursières. L'impact du sentiment se révèle plus prononcé pour les pays les plus culturellement enclins à des comportements de sur-réaction ou grégaires. (VA) This paper develops a new measure of investor sentiment in Europe using daily content from a Financial Times column. We find that our investor sentiment measure impacts the returns of stocks hard to value and difficult to arbitrage. Periods of high pessimistic (optimistic) sentiment indicator are followed by high (low) returns, consistent with the predictions of behavioral approach. Furthermore, we show that the culture influences the relationship between investor sentiment and stock returns. In particular, the impact of sentiment on stock returns is more pronounced in countries which are culturally more prone to herd-like behavior and overreaction.

Suggested Citation

  • Nicolas Boitout & Fabrice Hervé & Mohamed Zouaoui, 2015. "Médias et sentiment sur les marchés actions européens - Impact of sentiment media on European stock markets," Working Papers CREGO 1150101, Université de Bourgogne - CREGO EA7317 Centre de recherches en gestion des organisations.
  • Handle: RePEc:dij:wpfarg:1150101
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    Keywords

    sentiment de l'investisseur; médias; marchés des actions; culture; investor sentiment; media; stock market; culture;
    All these keywords.

    JEL classification:

    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
    • G15 - Financial Economics - - General Financial Markets - - - International Financial Markets

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