ESG AND FINANCIAL
PERFORMANCE:
Uncovering the Relationship by
Aggregating Evidence from 1,000 Plus
Studies Published between 2015 – 2020
By Tensie Whelan, Ulrich Atz, Tracy Van Holt and Casey Clark, CFA
2 ESG and Financial Performance
Meta-studies examining the relationship between ESG and financial performance have a decades-long
history. Almost all the articles they cover, however, were written before 2015. Those analyses found positive
correlations between ESG performance and operational eciencies, stock performance and lower cost of
capital. Five years later, we have seen an exponential growth in ESG and impact investing – due in large
part to increasing evidence that business strategy focused on material ESG issues is synonymous with high
quality management teams and improved returns. A case in point: A recent study looked at the initial stock
market reaction to the COVID-19 crisis (up to March 23) and found that companies scoring high on a “crisis
response” measure (based on Human Capital, Supply Chain, and Products and Services ESG sentiment) were
associated with 1.4-2.7% higher stock returns (Cheema-Fox et al., 2020). Nevertheless, the topic continues to
be debated, with some arguing that companies and investors should stick to managing for stock price and
that ESG is, at best, a distraction from the real business of making money.
The authors of this report, NYU Stern Center for Sustainable Business and Rockefeller Asset Management,
collaborated to examine the relationship between ESG and financial performance in more than 1,000
research papers from 2015 – 2020. Because of the varying research frameworks, metrics and definitions,
we decided to take a dierent approach than previous meta-analyses. We divided the articles into
those focused on corporate financial performance (e.g. operating metrics such as ROE or ROA or stock
performance for a company or group of companies) and those focused on investment performance (from
the perspective of an investor, generally measures of alpha or metrics such as the Sharpe ratio on a portfolio
of stocks), to determine if there was a dierence in the findings. We also separately reviewed papers and
articles focused on low carbon strategies tied to financial performance in order to understand financial
performance implications through the lens of a single thematic issue.
We found a positive relationship between ESG and financial performance for 58% of the “corporate” studies
focused on operational metrics such as ROE, ROA, or stock price with 13% showing neutral impact, 21%
mixed results (the same study finding a positive, neutral or negative results) and only 8% showing a negative
relationship. For investment studies typically focused on risk-adjusted attributes such as alpha or the Sharpe
ratio on a portfolio of stocks, 59% showed similar or better performance relative to conventional investment
approaches while only 14% found negative results. We also found positive results when we reviewed 59
climate change, or low carbon, studies related to financial performance. On the corporate side, 57% arrived
at a positive conclusion, 29% a neutral impact, 9% mixed and, 6% negative. Looking at investor studies, 65%
showed positive or neutral performance compared to conventional investments with only 13% indicating
negative findings. A detailed breakdown can be found in Figure 1.
These findings were supported by an additional meta-meta-analysis (a study of existing meta-studies) we
undertook. We found 13 corporate meta-analysis studies published (covering 1,272 unique studies) with a
quantitative approach and 2 investor meta-analysis studies (covering 107 unique studies) published since
2015. The former found consistent positive correlations between ESG and corporate financial performance;
the latter found that ESG investing returns were generally indistinguishable from conventional investing
returns. (Figure 2). We concluded that these two findings are robust across time and space.
Executive Summary
3 ESG and Financial Performance
Research over the last five years appears to be producing more
conclusive results, but it is worth acknowledging the challenges
with inconsistent terminology, insucient emphasis on “material”
ESG issues, ESG data shortcomings, and confusion regarding
dierent ESG investing strategies.
Research covering ESG and financial performance often suers
from inconsistent terminology and nomenclature. Meuer et al.
(2019) found 33 definitions of corporate sustainability in usage.
For corporations, embedded sustainability (ESG is part of the
business strategy) may have dierent performance implications
than traditional Corporate Social Responsibility (CSR) eorts
that emphasize community relations and philanthropy, yet
there has been insucient review of those dierences, creating
noise in the findings (Douglas et al., 2017). We see some of
that confusion in a study by Manchiraju and Rajgopal (2017)
which assessed the (poor) financial performance of companies
required to spend 2% of their profits on CSR by the Indian
government. In this case, CSR was philanthropy and community
relations, not sustainability related to the material ESG issues
that could enhance long-term performance.
Research often fails to distinguish between material and
immaterial ESG issues as well as ESG leaders versus improvers. For
example, Khan et al. (2016) demonstrate the alpha potential when
incorporating “material” ESG issues, with the stock performance
of companies focused on material issues outperforming those
that focuses on immaterial ESG issues or no ESG issues at all.
Rockefeller Asset Management’s research shows similar results:
one study emphasizes that ESG integration will increasingly be
demarcated between “Leaders” and “Improvers” and finds long-
term alpha enhancing potential when focusing on material ESG
issue improvement (Clark & Lalit, 2020).
The results are also complicated by the lack of standardization
with ESG data. Studies use dierent scores for dierent
companies by dierent data providers. Eccles et al. (2017), for
example, reviewed a global survey of institutional investors and
concluded that “the biggest barrier is the lack of high quality
data about the performance of companies on their material
ESG factors.” Plenty of technical evidence also points to the
shortcomings of accounting metrics and ESG data (Berg et
al., 2019). We found that at least 40% of studies relied on an
overall, third-party ESG score.
ESG integration, ESG momentum, decarbonizing, socially
responsible investing (SRI), negative screening, and impact
investing are just a few of the varied approaches referenced
in the research. They are often merged together, even though
each has dierent risk-reward implications. A common research
approach is to query Bloomberg for funds labeled ESG – those
funds are self-designated, and may lack a robust ESG investing
framework. Studies can also confuse the outcome by failing to
distinguish between performance of a strategy seeking market
rate or excess returns versus a strategy prioritizing positive
environmental and social impact while accepting concessionary
We drew six conclusions about
the relationship between ESG
and financial performance after
examining the 1000 plus
individual studies.
Improved financial
performance due to ESG
becomes more marked over
longer time horizons.
ESG integration, broadly
speaking as an investment
strategy, seems to perform
better than negative
screening approaches. A
recently released Rockefeller
Asset Management study
finds that ESG integration
will increasingly be
demarcated between
“Leaders” and “Improvers”
with the latter showing
uncorrelated alpha-
enhancing potential over
the long-term (Clark &
Lalit, 2020).
ESG investing appears
to provide downside
protection, especially during
a social or economic crisis.
Sustainability initiatives
at corporations appear
to drive better financial
performance due to
mediating factors such as
improved risk management
and more innovation.
Studies indicate that
managing for a low carbon
future improves financial
performance.
ESG disclosure on its own
does not drive financial
performance.
1.
2.
3.
4.
5.
6.
4 ESG and Financial Performance
returns. Hernaus (2019) is an exception: she found that financial performance diered based on the
sustainable investing strategy employed by European fund managers. She writes, “previous studies have
predominantly treated SRI as homogeneous (Schroeder, 2007; Rathner, 2013) and have not distinguished
between particular, dierent SRI strategies available, whose number and diversity (European Sustainable
Investment Forum – Eurosif, 2012; US SIF, 2012; European Fund and Asset Management Association, 2016)
reflect the great heterogeneity of this financial phenomenon (Sandberg et al., 2009).” Investors seem
to be making a distinction; Eurosif found that ESG integration grew at a compound annual growth rate
(CAGR) of 27%, while negative screening fell 3% (Eurosif, 2018).
Some of the earlier short-comings in the corporate research have been addressed in the last five years,
which may be why we have more clear positive findings. However, academic researchers continue to be
challenged by the variability of ESG data and the lack of distinction between dierent investment strategies,
creating an opportunity for investors and researchers who can overcome this challenge. Judging from the
fact that the volume of research produced since 2015 is comparable to all papers published before 2015, this
is clearly an area where we should expect to see increased and improved research in coming years.
Figure 1. Positive and/or neutral results for investing in sustainability dominate. Very few studies found a negative
correlation between ESG and financial performance (based on 245 studies published between 2016 and 2020) .
Corporate (all)
Corporate (climate change)
Mixed
22%
28%
Mixed
9%
21%
Investor (all)
Investor (climate change)
Neutral
29%
13%
Negative
13%
14%
Positive
58%
57%
Figure 2. Conceptual overview of how investing in sustainability/ESG drives financial
performance: We reviewed and categorized relevant academic studies and analyzed
them through correlations, mediating factors, and a specific theme – climate change.
Investor-focused studies
tend to look at a direct
relationship between ESG
and performance based on
benchmarks and a portfolio-
level view of themes such as
materiality or governance
structure. Meta-analytical
eects are Hedges’ g or d.
Corporate-focused studies
may include mediating
factors such as innovation,
operational eciency, or
risk management for a
better understanding of how
sustainability initiatives lead
to CFP. Meta-analytical eects
are partial correlations from
regression models.
Sustainability
strategy
& practice
Corporate financial
performance
(CFP) or market
performance
Climate
change
action
Correlation
Mediation
Neutral
22%
26%
Positive
33%
43%
Negative
6%
8%
5 ESG and Financial Performance
In reviewing over 1,000 studies published between
2015 – 2020, we found a positive relationship
between ESG and financial performance for 58%
of the “corporate” studies focused on operational
metric such as ROE, ROA, or stock price with 13%
showing neutral impact, 21% mixed results (the same
study finding a positive, neutral or negative results)
and only 8% showing a negative relationship. For
investment studies typically focused on risk-adjusted
attributes such as alpha or the Sharpe ratio on a
portfolio of stocks, 33% found positive performance
26% found neutral impacts (in other words,
performed similar to conventional investments), 28%
had mixed results (positive, neutral, or negative,
generally because they examined a variety of
variables and time periods as well as multiple
samples in one study) and 14% found negative
results. In other words, 59% showed similar or better
performance relative to conventional investment
approaches while only 14% found negative results.
We also found positive results when we reviewed
59 climate change, or low carbon, studies related
to financial performance. On the corporate side,
57% arrived at a positive conclusion, 29% a neutral
impact, 9% mixed and, 6% negative. Looking at
investor studies, 65% showed positive or neutral
performance compared to conventional investments
with only 13% indicating negative findings. A detailed
breakdown is found in Figure 1.
These findings were supported by an additional
meta-meta-analysis (a study of existing meta-studies)
we undertook. We found 13 corporate meta-analysis
studies published (covering 1,272 unique studies) with
a quantitative approach and 2 investor meta-analysis
studies (covering 107 unique studies) published since
2015. The former found consistent positive correlations
between ESG and corporate financial performance;
the latter found that ESG investing returns were
generally indistinguishable from conventional investing
returns. (Figure 2). We concluded that these two
findings are robust across time and space.
Many of the studies reviewed described a finding
and tried to explain it through the lens of a social
science derived model of the world. Several social
science theories dominate the research:
Stakeholder theory (successful companies need
to manage for a wide variety of stakeholders
such as employees, civil society, suppliers and
investors),
Shared value (companies that create shared value
for all stakeholders do better financially),
Legitimacy theory (a social contract between the
corporation and society, which, if broken, leads
to consumers reducing demand or governments
imposing regulatory restrictions),
Resource-based view (emphasizing internal
resources such as employees and intangible assets
for achieving a competitive advantage).
Studies most often invoked stakeholder theory
(N=80), but shared value, legitimacy theory and the
resource-based view appeared in a sizeable share of
studies (16% - 25%).
Notably, those studies that did not include a social
science theory only found a one-in-three positive
association with ESG and financial performance,
whereas the odds were one-in-two on average for
research grounded in social science theories.
This finding points toward the need to better
understand the mechanisms behind the relationship
between ESG and financial performance. Ioannou
and Serafeim (2019) in Corporate Sustainability: A
Strategy? took a closer look at whether sustainability
might be considered a strategic approach (leading
to a competitive advantage) or common practice
(a set of standards within an industry that confer
legitimacy). They find that both options are relevant
and that adoption of sustainability over time is
complex and dynamic.
The Results Indicate an
Encouraging Relationship between
ESG and Financial Performance
6 ESG and Financial Performance
Figure 3. Twelve of thirteen meta-analyses (comprising 1,272 studies) found a positive association between some aspects
of sustainability and financial performance (1976-2018).
Study estimate 95% confidence/credible interval
Lopez-Arceiz et al. 2018 0.199 [0.166, 0.232]
Lu & Taylor 2016 0.174 [0.145, 0.202]
Hou et al. 2016 0.158 [0.134, 0.182]
Busch & Friede 2018 0.119 [0.104, 0.134]
Plewnia & Guenther 2017 0.094 [0.062, 0.126]
Gallardo-Vazquez et al. 2019 0.084 [0.068, 0.100]
Hang et al. 2019 0.072 [0.060, 0.084]
del Mar Miras-Rodgriguez et al. 2015 0.067 [0.023, 0.111]
Wang et al. 2016 0.059 [0.045, 0.072]
Vishwanathan et al. 2019 0.030 [0.022, 0.038]
Hoobler et al. 2018 0.023 [0.007, 0.039]
Jeong & Harrison 2017 0.007 [0.001, 0.013]
Rost & Ehrmann 2017 0.004 [-0.004, 0.012]
Modeled mean estimate 0.089 [0.053, 0.127]
0 0.24
7 ESG and Financial Performance
1. Improved financial performance due to ESG
becomes more marked over a longer time horizon
We found that our proxy for an implied long-term
relationship had a coecient with a positive sign
that is statistically significant. The model suggests
that, everything else being constant, a study with
an implied long-term focus is 76% more likely
to find a positive or neutral result. Hang et al.
(2019) undertook a meta-analysis (N=142) which
found corporate investments in environmental
sustainability had no eect on corporate financial
performance in the short term, but had positive
eects over the longer-term. Some recent papers
were optimistic about how markets value long-
term commitments. Kotsantonis et al. (2019) found
that CEOs communication of “long-term plans”
resulted in an abnormal positive reaction by the
stock market. A cross-sectional study on firms
with strong ESG ratings found returns up to 3.8%
higher per standard deviation of ESG score in the
mid- and long-term (Dorfleitner et al., 2018).
2. ESG Integration as a strategy seems to perform
better than negative screening approaches
and ESG momentum may cause improvers to
outperform leaders
The sample size of studies on specific portfolio
management strategies and asset classes was
small, making it challenging to interpret how they
would translate into decision-making for an asset
manager. The dominant research approach was
to find a sample of sustainable funds or indices
and compare them to a conventional benchmark.
Most of the research focused on equities (N=54,
with 33% finding alpha, 54% finding a neutral or
mixed eect) rather than fixed income (N=11, with
19% finding alpha and 56% finding a neutral or
mixed eect). In addition, most studies focused
on active (N=41, with 29% alpha and 56% neutral
or mixed) vs passive (N=6) investing.
We also looked at the explicit or implicit
investment strategies that underpin the analysis
in the academic studies (they serve as proxy
for “real-world” applicability; for example,
researchers may define a universe of available
ESG funds or use an ESG score in a regression
model). We found ESG integration seemed
to perform better than negative screening
and divesting, with 33% of the (N=17) studies
finding alpha and 53% finding neutral or mixed
results. The subgroup of papers analyzing
pooled investment strategies (combining
everything with some type of ESG label) was
least convincing in terms of showing a positive
association (65% less likely). We speculate it
might be because too many dierent strategies
were combined together. For example, this
group contains socially responsible investing
(SRI) and ethical funds that may not have an
ambition to match or outperform a conventional
benchmark. Ielasi et al. (2018) compared
dierent sustainable investing strategies with
each other and indeed found performance
dierences between passive and active and
ethical versus ESG integration strategies.
Very few studies emphasized material ESG
issues and demarcated between ESG Leaders,
or best-in-class firms, and ESG Improvers,
or firms showing the greatest improvement
in their ESG footprint. One seminal paper
titled Corporate Sustainability: First Evidence
on Materiality published in 2016 by Kahn,
Serafeim and Yoon from Harvard Business
School showed the outperforming potential of
mapping material ESG issues and emphasizing
momentum, or ESG improvement (Khan et al.,
2016). Rockefeller Asset Management’s research
further supports these results. In their paper,
ESG Improvers: An Alpha Enhancing Factor,
they use materiality mapping to dierentiate
between ESG Leaders and ESG Improvers, and
demonstrate the alpha potential of the latter in
a study covering US equities from 2010 – 2020.
Six Key Takeaways
8 ESG and Financial Performance
The key takeaways from the research include:
A back-tested, hypothetical portfolio of top-
quintile ESG Improvers outperformed bottom-
quintile ESG “Decliners” by 3.8% annualized in
an analysis covering US all cap equities from
2010 – 2020. The signal is monotonic, in that
outperformance grew with each quintile.
An optimized hypothetical ESG Improvers
portfolio, which seeks to isolate pure ESG
improvement while controlling for sector and
factor biases, generated 0.5% annualized
excess returns from 2010 – 2020 with 1.3%
tracking error relative to the Bloomberg US
3000 Index.
The ESG Improvers factor enhanced returns
when integrated with traditional factors
over the back-test period. A hypothetical
multi-factor ESG Improvers + Quality + Low
Volatility portfolio outperformed a two-
factor Quality and Low Volatility portfolio by
0.45% annualized. Over the same time period,
an ESG Improvers + Value + Momentum
Portfolio outperformed a two-factor Value and
Momentum portfolio by 1.1% annualized.
3. ESG investing appears to provide downside
protection, especially during social or
economic crisis
ESG investing appears to provide asymmetric
benefits. As discussed below, investor studies
in particular seem to demonstrate a strong
correlation between lower risk related to
sustainability and better financial performance.
Recent events have provided unique datasets
for researchers. During the financial crisis
(2007-2009) Fernández et al. (2019) found
that German green mutual funds delivered
risk-adjusted returns slightly better than their
peers (during non-crisis they were equal to
conventional funds, but better than SRI funds).
Similarly, the FTSE4Good, a set of ESG stock
market indices, performed better and recovered
its value quicker after the 2008 financial crash
(Wu et al., 2017). These findings seem to hold in
general for economic downturns as high rated
ESG mutual funds outperformed low rated funds
based on the Sharpe ratio (Chatterjee, 2018; Das
et al., 2018). Finally, in the first quarter of 2020
COVID downturn, 24 of 26 ESG index funds
outperformed their conventional counterparts,
which they credited ESG leading to more
resiliency and at the end of the third quarter, 45%
of ESG-focused funds outperformed their index
(Morningstar, 2020). While virtually all studies,
by academics and practitioners alike found this
correlation, one outlier, based on ESG scores, did
not find such a correlation (Demers et al., 2020)
4. Sustainability initiatives at corporations appear
to drive financial performance due to factors
such as improved risk management and more
innovation
Sustainability strategies implemented at the
corporate level can drive better financial
performance through mediating factors—i.e.
the sustainability drivers of better financial
performance such as more innovation, higher
operational eciency, better risk management,
and others, as defined in the Return on
Sustainability Investment (ROSI) framework (Atz
et al., 2019). We reviewed the studies through the
lens of these mediating factors and found that
stakeholder relations, risk, operational eciency,
and innovation were the most common in the
literature. For example, Vishwanathan et al.
(2019) reviewed 344 studies and identified four
mediating factors – enhancing firm reputation,
increasing stakeholder reciprocation, mitigating
firm risk, and strengthening innovation capacity –
which drove financial performance.
Our regression analysis reviewed 17 studies that
included some aspect of innovation in their
analysis, and all had positive findings regarding
related financial performance. However, some
of these studies did not exclusively focus on
innovation and so the individual eect is hard
to separate out. In addition, the small sample
size reduces the level of confidence; thus we see
this as an exciting area for further research. For
operational eciency, more than half of the 22
studies (59%) found a positive correlation between
operational eciency and financial performance;
only three of the 22 had a negative finding.
Regarding risk, we found that investor studies
that did not include risk as a mediating factor
were only 27% likely to find a positive correlation
with financial performance, while 48% of
those studies that did include risk were likely
to find a positive result. And 52% of the 40
studies across all studies looking at risk found
a positive correlation. For example, portfolios
with lower ESG risks can maintain risk-adjusted
performance (Hübel & Scholz, 2020). Gloßner
(2018) concluded that controversial firms with
9 ESG and Financial Performance
a known history of ESG incidents exhibit “a
four-factor alpha of −3.5% per year, even when
controlling for other risk factors, industries, or
firm characteristics.” In addition, with regards to
climate-change related risk, 51% of the studies
found a positive correlation between better
financial performance and managing for physical
and transition risk related to climate change.
Overall, no single mediating factor resulted in a
statistically significant eect in our model; partly
because the underlying samples are small and
partly because the eects are hard to isolate
in studies that mostly look very broadly at the
relationship between sustainability and financial
performance. More research is needed in this area.
5. Studies indicate that managing for a low carbon
future improves financial performance
Research on mitigating climate change
through decarbonization strategies is fairly
recent, but finds strong evidence for better
financial performance for both corporates and
investors. Unfortunately, none of the three elite
finance journals (Journal of Finance, Journal of
Financial Economics, and Review of Financial
Studies) published a single article related to
climate change over their analysis period (Diaz-
Rainey et al., 2017; Zhang et al., 2019), which
we corroborated. However, 59 studies on the
relationship between low carbon strategies and
financial performance were published elsewhere
in the last five years, and the majority uncovered
a positive result. Mitigating risk was the focus
on many of the studies, as discussed earlier. For
example, Cheema-Fox et al. (2019) examined
the construction of decarbonization factors and
found that dierent decarbonization strategies
generate dierent risk-adjusted returns. In
particular, they found strategies that lowered
carbon emissions more aggressively performed
better. In, Park, and Monk (2019) assessed 736
US public firms from 2005 to 2015, and found
that a strategy of going long on carbon ecient
firms and shorting carbon inecient firms could
earn an annual abnormal return of 3.5%-5.4%.
Their research indicates that investing in carbon-
ecient firms can be profitable even without
government incentives.
Few studies focused on the investment
implications of investing in companies producing
climate mitigation or adaption solutions,
which diers from decarbonizing portfolios.
This is a promising area of research. It seems
likely that climate change will transform
economies and markets through changing
regulations, changing consumption patterns,
especially from next generation consumers,
and technological advancements. As a proof
point, FTSE’s Opportunities All Share Index - an
index that includes companies with involvement
in Renewable & Alternative Energy, Energy
Eciency, Water Infrastructure and Technology,
Waste Management & Technologies, Pollution
Control, Environmental Support Services, and
Food, Agriculture & Forestry – outperformed its
traditional counterpart, FTSE Global All Cap Index
by 4.9% annualized over the five-year period from
October 2015 – October 2020.
6. ESG disclosure on its own does not drive
financial performance
Just 26% of studies that focused on disclosure
alone found a positive correlation with financial
performance compared to 53% for performance-
based ESG measures (e.g. assessing a firm’s
performance on issues such as greenhouse
gas emission reductions). This result holds in
a regression analysis that controls for several
factors simultaneously. While what gets measured
does matter, measuring ESG metrics without an
accompanying strategy seems ineective. For
example, signatories to the UN Principles for
Responsible Investment agreed to implement
ESG policies, but the focus is on disclosure versus
performance and Kim and Yoon (2020) found
that the signatories on average improved neither
the ESG nor the financial performance of their
portfolios. In more general terms, Fatemi et al.
(2018) specifically distinguished between ESG
disclosures and performance. While high (low)
ESG performance increased (decreased) firm
value, they also found that ESG disclosures on
their own had a negative valuation eect.
10 ESG and Financial Performance
Our analysis of more than 1,000 research papers
exploring the linkage between ESG and financial
performance since 2015 points to a growing
consensus that good corporate management of
ESG issues typically results in improved operational
metrics such as ROE, ROA, or stock price. For
investors seeking to construct portfolios that
generate alpha, some ESG strategies seem to
generate market rate or excess returns when
compared to conventional investment strategies,
especially for long-term investors, and provide
downside protection during economic or social crisis.
Notably, very few studies found definitive negative
correlations between ESG and financial performance.
Unfortunately, studies to help us understand why
these correlations exist were lacking. There were
very limited studies on mediating factors such as
innovation and operational eciencies that might
drive better corporate performance. And most
investment studies did not clearly demarcate the
diering risk-reward outcomes of varying ESG
integration approaches, nor did they analyze
the dierent performance implications of ESG
leaders (best-in-class firms) versus ESG improvers
(firms showing the greatest improvement in their
ESG footprint). Finally, thematic studies are also
relatively limited although climate change studies
show promise; research shows a strong relationship
between decarbonization strategies and improved
performance.
Studies need to better distinguish between dierent
types of investment strategies and asset classes in
order to analyze financial performance. Thematic
studies on material issues such as climate change
provide an intriguing approach as focusing on one
issue may lead to more conclusive results. We also
recommend that future meta-analyses distinguish
between corporate and investor studies as we have
done. Finally, an area that has been woefully under
researched is the causal factors for improved financial
performance by corporates with robust sustainability
strategies – we recommend more research into
sustainability-driven innovation, employee relations,
supplier loyalty, customer demand, risk mitigation,
operational eciency, and so on.
We look forward to reviewing the field of the
research in 2025!
Conclusion
11 ESG and Financial Performance
To understand dierences in studies in a systematic manner, we disaggregated the research into three types:
1. Studies that analyzed how corporations with sustainability initiatives performed financially.
These studies typically used a panel of public companies, a commercially available ESG score or an
environmental/social performance metric, and may include mediating factors such as innovation,
operational eciency, or risk management for a better understanding of how sustainability initiatives
lead to corporate financial performance (Vishwanathan et al., 2019). Here, we relied on our codebook
(Supplement 1) and investigated how innovation, operational eciency, risk management and other
mediating factors were present in the academic literature.
2. Studies that analyzed how ESG funds, portfolios, or indices performed financially. Most investment-oriented
research on ESG and financial performance was at a portfolio level of an asset class using some metric of
risk-adjusted return, for example, comparing alpha in conventional and sustainable mutual funds. More recent
studies also looked at issues such as materiality (Khan et al., 2016) or investment management strategies such
as negative screening. Here, we analyzed the investor-focused research, which ESG investment strategies
were considered, and how the investor research compared to the corporate research.
3. Studies that analyzed a specific theme such as climate change, which can be relevant for managers and
investors. A third type of study focuses on a specific ESG theme. We chose climate change because it is a
new and growing area of financial risk for managers and investors that also presents opportunities. Here, we
gathered studies and industry reports and examined the role of climate change for asset managers.
We searched ProQuest, Web of Science (WoS), Google Scholar, Social Science Research Network (SSRN),
National Bureau of Economic Research (NBER), and other journal databases for two sets of keywords: related to
sustainability/ESG and related to financial performance/CFP. Examples of the search queries are shown in Table
A1 in the Appendix. We restricted the search for the period of January 2015 to February 2020 to find relevant
studies that were published in English. We used various validation strategies to achieve a comprehensive sample.
To develop the final sample (Figure 2), we screened (level 1) academic papers that examined the causal
relationship between sustainability and financial performance. The rapid title screening identified relevant
studies based on three quick heuristics that screened for results that we hoped generalize the most:
1. Is financial performance a dependent variable (outcome)?
2. Does a “sustainability variable” lead to a quantitative result?
3. Is there more than one company or fund being investigated?
In level 2 screening, we attempted to find the relevant section for the codebook (see Supplement 1) in the
full text such as definition of variables or a results table. The full set of eligible articles (1,141) was further
reduced, so that we could focus on coding studies for the quantitative synthesis. All quantitative meta-
analyses (n = 15) published in the reference frame were coded to achieve a dataset suitable for a second-
order meta-analysis (see Supplement 2 for details and data).
The median start and end date for an individual study’s data sample was 2007 to 2015. Many studies relied on
long time series with 27% having a mid-point year that was before the financial crisis of 2008. Nineteen percent
of studies used a sector-specific dataset. Geographically most studies focused on the USA (34%) and Europe
(24%) with a sizable share of global (29%) datasets. Over 30% of studies specified a specific country. For the
outcome variables we found that 18% analyzed ESG disclosures only and not ESG performance (and of those
40% used a third-party ESG score such as MSCI KLD). Market-based measures of financial performance (in 76%
of studies) were vastly more popular than accounting-based measures (27%) with some overlap.
Appendix:
Methodology
12 ESG and Financial Performance
The full study and supplement 1 and 2 are available on SSRN:
https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3708495
The NYU Stern Center for Sustainable Business (CSB) envisions a better world through better business.
CSB was founded on the principle that sustainable business is good business, and is proving the value of
sustainability for business management and performance at a time when people and the planet need it
most. Through education, research, and engagement, CSB prepares individuals and organizations with the
knowledge, skills, and tools needed to embed social and environmental sustainability into core business
strategy. In doing so, businesses reduce risk; create competitive advantage; develop innovative services,
products, and processes; while improving financial performance and creating value for society. For more
information, visit CSB’s website: https://www.stern.nyu.edu/sustainability
Appendix:
Summary Charts and Exhibits
Table 1. Cross-tabulations for the mediating factor risk management and overall study finding. Note how investor studies
had fewer positive results (27% vs 48%) when the study did not consider risk.
Indicator variables Count Positive Neutral/mixed Negative
Mediating factor risk in corporate studies 16 57% 34% 8%
No mediating factor risk in corporate studies 143 69% 31% 0%
Mediating factor risk in investor studies 23 48% 39% 13%
No mediating factor risk in investor studies 63 27% 59% 14%
Mediating factor risk in thematic studies 13 69% 23% 8%
No mediating factor risk in thematic studies 46 54% 35% 11%
Notes. See Supplement 1: Codebook for all definitions.
Table 2. Selected codes for all studies across overall finding. Interpret rows with low counts with caution.
Indicator variables Count Positive Neutral/mixed Negative
Study design
Disclosure only 50 26% 60% 14%
Performance only 159 53% 39% 8%
Accounting-based measure 67 46% 42% 12%
Market-based measure 186 46% 44% 11%
Aggregate ESG score 48 52% 40% 8%
Casualty proxies
Implied long-term relationship 94 50% 40% 10%
Lagged dependent variable 51 51% 35% 14%
Fixed eects / matching methods / instrumental variables 66 41% 53% 6%
Mediating factors
Risk 40 52% 40% 8%
Operational eciency 22 59% 27% 14%
Innovation 17 76% 24% 0%
13 ESG and Financial Performance
Indicator variables Count Positive Neutral/mixed Negative
Social science theories
Stakeholder theory 80 57% 34% 9%
Legitimacy theory 40 45% 40% 15%
Porter’s hypothesis 40 57% 28% 15%
Resource-based view 64 55% 36% 9%
None 74 32% 57% 11%
Notes. See Supplement 1: Codebook for all definitions.
Table 3. Selected codes for studies of the investor type across overall finding. Interpret rows with low counts with caution.
Indicator variables Count Positive Neutral/mixed Negative
Asset class
Equities 54 33% 54% 13%
Fixed income 11 19% 56% 25%
Management style
Active 41 29% 56% 15%
Passive 6 50% 50% 0%
Portfolio management strategy
Negative screening & divesting 16 19% 69% 12%
Pooled strategies created by researchers 30 10% 73% 17%
ESG integration created by researchers 17 33% 53% 14%
Notes. See Supplement 1: Codebook for further details. Portfolio management strategy: Investors describe practical portfolio management
strategies in many ways, sometimes inconsistent. We broadly follow Matos (2020): “ESG and Responsible Institutional Investing Around the
World: A Critical Review from the CFA Institute Research Foundation.” Existing literature explores several ESG investing strategies in portfolio
management. Oftentimes the strategies are used interchangeably without clear distinctions. Negative screening & divesting is an investing
strategy where companies that do not comply with pre-established ESG principles are excluded from the portfolio. If the paper focuses on the
so-called “sin” industries alone, investing (or not) in the tobacco industry or staying away from oil and gas companies, it is coded as negative
screening, also. For an example see Richey (2016). Pooled strategies as created by researchers: Instead of excluding companies, investors
analyze and select firms and assets that exemplify sustainable business practices. If a paper compares ESG investing versus conventional
investing, such as comparing ESG mutual funds vs. conventional mutual funds, or SRI mutual funds versus conventional mutual funds, or ESG
index vs a benchmark conventional index, the strategy is coded as pooled strategies. For an example see Pereira et al. (2019). ESG integration
as created by researchers incorporates ESG analysis into fundamental research and portfolio construction beyond screening or pooled
strategies. We allowed for two subcodes in this category: ‘best-in-class’ and ‘improvers’. 1) If the paper specifically discusses “best-in-class” or
“improver”, then the paper is coded accordingly. The strategy is coded as best-in-class or improver when the strategy is the subject of study
in the paper, or the paper employs the strategy in portfolio construction. In this case, we code the paper accordingly. 2) If the paper does
not distinguish best-in-class and improver but rather using “ESG integration” as a generic strategy, then both strategies are selected. 3) If the
paper discusses ESG momentum strategy or the impact of ESG on momentum portfolios without distinguishing between best-in-class or
improvers, the strategy is coded as both (Kaiser & Welters, 2019; Yen et al., 2019).
Table 4. Selected codes for studies of the climate change issue type across overall finding.
Interpret rows with low counts with caution.
Indicator variables Count Positive Neutral/mixed Negative
Risk management
Physical risk 41 51% 39% 10%
Transitional risk 35 51% 40% 9%
Dynamic materiality / scenario 9 67% 11% 22%
Notes. See Supplement 1: Codebook for all definitions.
14 ESG and Financial Performance
Table 5. Ordered logit regression model for all studies
Dependent variable
Overall finding (negative, neutral/mixed, positive)
1 2 3 4 5
Investor perspective (vs corporate)
-0.976*** -1.103*** -0.882*** -0.992*** -1.129***
(0.263) (0.316) (0.346) (0.286) (0.381)
Climate change issue (vs not)
0.21 0.252 -0.006 0.153 0.09
(0.297) (0.31) (0.384) (0.304) (0.395)
ESG disclosure (vs performance)
-0.767** -0.751**
(0.347) (0.37)
Accounting-based (vs market)
-0.856*** -0.842**
(0.322) (0.331)
ESG score (vs E/S/G/other)
0.36 0.451
(0.36) (0.381)
Implied long-term relationship
(vs short term)
0.381 0.568
(0.315) (0.327)
Lagged dependent variable
(vs concurrent)
-0.226 -0.54
(0.389) (0.412)
Fixed eects / matching
methods / instrumental variables
-0.252 -0.262
(0.342) (0.353)
No social science theory
-0.371 -0.214
(0.359) (0.388)
Mediating factor: Risk
0.711* 0.536
(0.394) (0.413)
Mediating factor: Operational eciency
-0.046 0.148
(0.5) (0.539)
Mediating factor: Innovation
1.132* 1.212*
(0.678) (0.689)
Region controls? No Yes Yes Yes Yes
Observations 241 239 241 241 239
Notes. This table shows the result of an ordered logit regression model for all studies with five model specifications. The largest
statistically significant coecient appeared from the investor indicator suggesting that the type of research is one of the main
explanatory variables for positive or negative results. Study design factors were important but proxies for causality or specific mediating
factors were not. The indicator variables for the three mediating factors are proxies and are based on few studies, and they should hence
be interpreted with caution. See Supplement 1: Codebook for the definitions of codes and variables. Standard errors in parentheses;
*p<0.1; **p<0.05; ***p<0.01.
15 ESG and Financial Performance
Table 6. Ordered logit regression model for investor-focused studies
Dependent variable
Overall finding (negative, neutral/mixed, positive)
1 2 3 4 5
Climate change issue (vs not)
0.534 0.356 0.289 0.591 0.206
(0.478) (0.546) (0.508) (0.502) (0.588)
ESG disclosure (vs performance)
-1.334** -1.120*
(0.568) (0.622)
Accounting-based (vs market)
0.144 0.154
(0.923) (0.965)
ESG score (vs E/S/G/other)
-0.082 -0.231
(0.594) (0.623)
Negative screening or divesting
-0.004 -0.028
(0.575) (0.597)
Pooled strategies
-1.146** -1.041
(0.523) (0.559)
ESG integration
0.865* 0.450
(0.520) (0.557)
Active management
0.075 0.451
(0.437) (0.484)
Equities
0.313 -0.083
(0.443) (0.486)
Observations 86 86 86 86 86
Notes. This table shows the result of an ordered logit regression model for investor-focused studies with five model specifications. The
smaller sample size suppressed the power of the statistical tests, but some coecients were comparable in magnitude to the models in
Table 5. Coecients for pooled strategies as defined by researchers were largest among portfolio management strategies suggesting
that papers that relied on that ESG portfolio management selection were more likely to find negative or neutral results. The dierence
between the pooled strategies and ESG integration was statistically significant. See Supplement 1: Codebook for the definitions of codes
and variables. Standard errors in parentheses; *p<0.1; **p<0.05; ***p<0.01.
16 ESG and Financial Performance
Level 1
Screening
Figure 4. Study selection based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA)
guidelines. M = corporate/manager type; I = investor/asset manager type; CC = climate change; n = count
Identification
Level 2
Screening
Inclusion
Records identified through
database searching
(M = 2416; I = 181; CC = 183)
Records screened
(M = 2,359; I = 173; CC = 182)
Full-text articles screenend
and eligible
(n =1,141)
Studies that are prioritized
and eligible
(M = 579; I = 103; CC = 105)
Studies included in
quantitative synthesis
(M = 159; I = 86; CC = 59)
Studies included in qualitative
synthesis (meta-analyses)
(n = 27)
Studies included in quantitative
synthesis (meta-analyses)
(n = 15)
Additional records identified
through other sources
(n = 46)
Full-text articles de-prioritized
(year = 2015, 2016)
(n = 354)
Balance filter for M only
(impact factor; stratification)
(n = 420)
Records excluded
(n = 1,465)
Records labeled as
background papers
(n = 108)
Additional records identified
through validation eorts
(M = 12; I = 13; CC = 41)
Records after duplicates
removed
(n = 2,714)
17 ESG and Financial Performance
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