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The impact of green investors on stock prices

Author

Listed:
  • Gong Cheng
  • Eric Jondeau
  • Benoit Mojon
  • Dimitri Vayanos

Abstract

We study the impact of green investors on stock prices in a dynamic equilibrium asset pricing model where investors are green, passive or active. Green investors track an index that excludes progressively the firms with the highest greenhouse gas emissions. Active investors maximize expected returns and can buy stocks of brown firms whereas passive investors hold an index of the entire market. Contrary to the literature, we find a large fall in the stock prices of the high-emitting firms that are excluded and in turn an increase in stock prices of greener firms when the exclusion strategy is announced and during the transition process. The immediate and large effects at the announcement date yield a first-mover advantage to green investors that adopt the decarbonization strategy early. This large price impact comes from the imperfect substitution of stocks among investor populations. A smaller size of active investors relative to green investors amplifies the price impact of green investment.

Suggested Citation

  • Gong Cheng & Eric Jondeau & Benoit Mojon & Dimitri Vayanos, 2023. "The impact of green investors on stock prices," BIS Working Papers 1127, Bank for International Settlements.
    • Handle: RePEc:bis:biswps:1127
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    References listed on IDEAS

    as
    1. Andrea M. Buffa & Dimitri Vayanos & Paul Woolley, 2022. "Asset Management Contracts and Equilibrium Prices," Journal of Political Economy, University of Chicago Press, vol. 130(12), pages 3146-3201.
    2. Philippe van der Beck & Coralie Jaunin, 2021. "The Equity Market Implications of the Retail Investment Boom," Swiss Finance Institute Research Paper Series 21-12, Swiss Finance Institute.
    3. Ariel K. H. Lui & Maggie C. M. Lee & Eric W. T. Ngai, 2022. "Impact of artificial intelligence investment on firm value," Annals of Operations Research, Springer, vol. 308(1), pages 373-388, January.
    4. Philippe van der Beck, 2021. "Flow-Driven ESG Returns," Swiss Finance Institute Research Paper Series 21-71, Swiss Finance Institute.
    Full references (including those not matched with items on IDEAS)

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    More about this item

    Keywords

    asset pricing; green investing; passive investing; portfolio rebalancing;
    All these keywords.

    JEL classification:

    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G23 - Financial Economics - - Financial Institutions and Services - - - Non-bank Financial Institutions; Financial Instruments; Institutional Investors
    • Q54 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Climate; Natural Disasters and their Management; Global Warming

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