Joachim Klement, CFA, is the writer most not too long ago of Geo-Economics: The Interplay between Geopolitics, Economics, and Investments from the CFA Institute Research Foundation.
There are two often-repeated critiques of environmental, social, and governance (ESG) investing that I actually can’t stand. They’ve the standard of truthiness about them and are what teachers typically name “as if” arguments. For my youthful readers, the time period truthiness was coined by Stephen Colbert throughout his days internet hosting The Colbert Report on Comedy Central. Wikipedia defines it as follows:
“Truthiness is the belief or assertion that a particular statement is true based on the intuition or perceptions of some individual or individuals, without regard to evidence, logic, intellectual examination, or facts.“
One truthiness-infused argument in investing is that the rise of index funds and exchange-traded funds (ETFs) makes markets much less environment friendly and causes inventory market bubbles. This may be true if index traders accounted for the overwhelming majority of belongings underneath administration (AUM). However in the present day, index funds handle lower than 30% of all belongings. The index-funds-create-bubbles declare merely ignores this truth or assumes that the lively traders who account for the remaining 70% can’t type an impartial opinion and blindly observe benchmark indices, which isn’t flattering both.
In ESG investing, a equally truthy critique holds that portfolios managed with ESG overlays have to underperform their typical friends. Why? As a result of such overlays are “optimization with extra constraints.” So ESG investing means excluding oil and fuel or equally ESG-challenged corporations from the portfolio. Thus, fashionable portfolio principle dictates that the environment friendly frontier can’t result in the identical return as one that features these shares.
There are two issues with this rivalry. First, it assumes that ESG investing is identical as excluding sure corporations or sectors from a portfolio. That is how many individuals nonetheless method ESG investing and it’s, fairly frankly, the worst option to do it. Not only do exclusionary screens not work, they are counterproductive.
Fortunately, severe ESG traders moved on from exclusions a very long time in the past. The subsequent iteration of ESG was the best-in-class method. ESG portfolios invested in all sectors however solely within the corporations with the bottom ESG threat in every sector.
Each ESG index follows this course. To make sure, best-in-class investing has its personal issues, so I’m not endorsing it. However this single modification refutes the notion that ESG investing can’t probably have the identical risk-return trade-off as typical investing. The efficiency of the MSCI World Index and the MSCI World ESG Index demonstrates this.
MSCI AC World vs. MSCI AC World ESG Leaders

The 2 indices are nearly an identical. Technically, the ESG index has an annualized return of 5.35% since its 2007 inception in comparison with 5.32% for the standard index. The identical train with regional and nation indices yields the identical outcomes. The efficiency of ESG indices has kind of mirrored that of typical indices over the past decade or extra.
That, by the way in which, shouldn’t come as a shock. The very best-in-class method mimics typical methods as intently as doable. Which is precisely what most ESG indices had been set as much as do.
Most lively fund managers don’t outperform typical market indices and since ESG indices have nearly the identical efficiency as typical indices, this additionally means that almost all of lively fund managers don’t outperform ESG indices both.
Which brings me to the second flawed critique of ESG investing. That ESG investing has to underperform its typical counterpart as a result of it’s optimization with extra restrictions is a theoretical argument: It could be true in a really perfect world however it isn’t true in any respect in follow. Fashionable portfolio principle assumes that we will forecast future returns, volatilities, and correlations between belongings with excessive precision. However in actuality, each forecast has estimation errors. The current presidential election in the US demonstrates this. Those that had been stunned by the closeness of the end result both don’t perceive estimation errors or haven’t paid consideration.
The identical is true for portfolio optimization. I’ve written about estimation uncertainty and the way it ruins our funding course of in the true world here, here, here, here, here, here, here, here, and here. I ought to assume that the lesson would have sunk in by now, however it clearly has not.
Ultimately, the uncertainties round our forecasts are a lot larger than any constraints that fashionable ESG investing could placed on our portfolios. To contend that absolutely built-in ESG investing is constrained optimization is itself an argument constrained by truthiness. And that’s the phrase.
For extra from Joachim Klement, CFA, don’t miss 7 Mistakes Every Investor Makes (And How to Avoid Them) and Risk Profiling and Tolerance, and join his Klement on Investing commentary.
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All posts are the opinion of the writer. As such, they shouldn’t be construed as funding recommendation, nor do the opinions expressed essentially replicate the views of CFA Institute or the writer’s employer.
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