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Public Attention to Environmental Issues and Stock Market Returns

Author

Listed:
  • I. El Ouadghiri
  • K. Guesmi
  • Jonathan Peillex

    (CRIISEA - Centre de Recherche sur les Institutions, l'Industrie et les Systèmes Économiques d'Amiens - UR UPJV 3908 - UPJV - Université de Picardie Jules Verne)

  • A. Ziegler

    (HCL - Hospices Civils de Lyon)

Abstract

This paper empirically examines the effect of public attention to climate change and pollution on the weekly returns on US sustainability stock indices (i.e. the DJSI US and the FTSE4Good USA Index) in comparison to their conventional parent indices (i.e. the S&P 500 Index and the FTSE USA). In addition to unexpected global climate-related natural weather disasters, we consider two complementary measures of continuous public attention to these environmental issues: (i) US media attention to climate change and pollution and (ii) the US Google Search Volume Index for these two keywords. Robust to several sensitivity analyses, our econometric analysis for the period from 2004 to 2018 reveals that public attention to environmental issues has a significantly positive (negative) effect on the returns on US sustainability (conventional) stock indices. A possible explanation of this result is that high public attention to environmental issues may drive traditionally sustainable investors, neosustainable, and opportunistic self-interested investors to favor stocks of sustainable firms. The insights from our empirical study are important for private and institutional investors as well as public policy. \textcopyright 2020 Elsevier B.V.

Suggested Citation

  • I. El Ouadghiri & K. Guesmi & Jonathan Peillex & A. Ziegler, 2021. "Public Attention to Environmental Issues and Stock Market Returns," Post-Print hal-03678291, HAL.
    • Handle: RePEc:hal:journl:hal-03678291
    DOI: 10.1016/j.ecolecon.2020.106836
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