ESG Investing: Theory, Evidence, and Fiduciary Principles

Journal of Financial Planning

9 Pages Posted: 4 Sep 2020 Last revised: 12 Oct 2020

See all articles by Max M. Schanzenbach

Max M. Schanzenbach

Northwestern University - Pritzker School of Law

Robert H. Sitkoff

Harvard University - Harvard Law School; European Corporate Governance Institute (ECGI)

Date Written: October 1, 2020

Abstract

Trustees and other investment fiduciaries of pensions, charities, and personal trusts, and those who advise them, face increasing pressure to rely on ESG factors in the investment management of tens of trillions of dollars of other people’s money. At the same time, however, confusion abounds about the intersection of fiduciary principles and ESG investing. This article cuts through that confusion to provide guidance about when and how ESG investing by trustees and investment fiduciaries is permissible. We make four interrelated points: (1) we provide a clarifying taxonomy on the meaning of ESG investing, differentiating between risk-return ESG (i.e., using ESG factors to improve risk-adjusted returns) and collateral benefits ESG (i.e., using ESG factors for third-party effects); (2) we discuss the subjectivity inherent to identifying and applying ESG factors, which complicates assessment of ESG investing strategies; (3) we summarize the current theory and evidence on whether ESG investing can improve risk-adjusted returns, finding the results to be mixed and contextual; and (4) we show that American trust fiduciary law generally prohibits collateral benefits ESG, but risk-return ESG can be permissible if supported by a reasoned and documented analysis that is updated periodically.

Keywords: Truste, Trustee, Prudent Investor Rule, ESG, Environmental Social and Governance, Law and Economics, Law and Finance, Trust, Pension, Charity, Endowment, Active Investing, Active Shareholding, Contrarian Investment, SRI

JEL Classification: K22, G11, G14, G18

Suggested Citation

Schanzenbach, Max Matthew and Sitkoff, Robert H., ESG Investing: Theory, Evidence, and Fiduciary Principles (October 1, 2020). Journal of Financial Planning, Available at SSRN: https://ssrn.com/abstract=3684979

Max Matthew Schanzenbach

Northwestern University - Pritzker School of Law ( email )

375 E. Chicago Ave
Chicago, IL 60611
United States

Robert H. Sitkoff (Contact Author)

Harvard University - Harvard Law School ( email )

1563 Massachusetts Avenue
Cambridge, MA 02138
United States

HOME PAGE: http://https://hls.harvard.edu/faculty/directory/10813/Sitkoff

European Corporate Governance Institute (ECGI) ( email )

c/o the Royal Academies of Belgium
Rue Ducale 1 Hertogsstraat
1000 Brussels
Belgium

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