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Journal Article
ESG Ratings: A Compass without Direction
August 2, 2022
We examine the recent concerns about the reliability of the assessments of ESG ratings providers. We review the demand for ESG information, the stated objectives of ESG ratings providers, how ratings are determined, the evidence of what they achieve, and structural aspects of the industry that potentially influence ratings. We find that while ESG ratings providers may convey important insights into the nonfinancial impact of companies, significant shortcomings exist in their objectives, methodologies, and incentives which detract from the informativeness of their assessments.
White Paper
Looking Forward With Historical Carbon Data
March 14, 2022
Increasingly many allocators are interested in computing their portfolio’s carbon footprint. We show that historical emissions data are useful despite a substantial 1-2 years’ lag typically to when investment portfolios are built.
Journal Article
Sustainable Systematic Credit
September 7, 2021
Interest in sustainable investing is now expanding into fixed income. This paper assesses how measures of sustainability/ESG might be relevant for corporate bonds and analyzes how ESG measures can be incorporated into an investment process to achieve the joint object of maximizing risk-adjusted returns and a sustainability target.
White Paper
(Car)Bon Voyage: The Road to Low Carbon Investment Portfolios
December 21, 2020
We discuss how an investment portfolio could dramatically reduce its carbon footprint, potentially even achieving a ‘net zero’ carbon footprint. We discuss the pros and cons of techniques to achieve carbon reduction goals, including security selection, shorting high carbon footprint companies, and trading instruments such as carbon offsets and carbon permits.
Working Paper
Does ESG Help or Hurt Returns?
December 7, 2020
Combining several large data sets, we compute the empirical ESG-efficient frontier and show the costs and benefits of responsible investing.
Data Set
Responsible Investing: The ESG-Efficient Frontier – Original Paper Data
October 29, 2020
This the original data set used in “Responsible Investing: The ESG-Efficient Frontier” (Pedersen, Fitzgibbons and Pomorski). It contains the total returns of the value-weighted and equal-weighted portfolios used in the paper.
Working Paper
Responsible Investing: The ESG-Efficient Frontier
October 10, 2019
Combining several large data sets, we compute the empirical ESG-efficient frontier and show the costs and benefits of responsible investing.
Journal Article
Assessing Risk through Environmental, Social and Governance Exposures
February 24, 2017
ESG investing may have a role in portfolios that extends beyond ethical considerations, particularly for investors interested in tilting toward safer stocks, and in a way that complements what is captured by traditional statistical risk models.
Journal Article
Long-Only Style Investing: Don't Just Mix, Integrate
June 30, 2016
We contrast two common approaches to long-only style investing: the “portfolio mix” and the “integrated portfolio.” Our results suggest that long-only factor or smart beta investors should consider integrating styles in portfolio construction.
Journal Article
Deactivating Active Share
January 6, 2016
The authors investigate Active Share, a measure meant to determine the level of active management in investment portfolios, and find it wanting.