SUSTAINABLE INVESTMENTS IMPACT ON FINANCIAL PERFORMANCE : A Panel Data Analysis of the Relationship Between ESG Factors and Financial Performance

Abstract: Sustainability is a broad concept where sustainability factors have become more fundamental during the recent years. However, the importance of these factors has not been as central when explaining stock returns. Thus, we perform this study with the aim to investigate the relationship between sustainability factors and financial performance. Specifically, by investigating the relationship between environmental, social and governance (ESG) variables and risk premiums. This is evaluated during the period 2014 to 2021, based on stocks included in the MSCI ACWI index. The explanatory variables are used as different levels of sustainability factors, where they reach from ESG scores at the top, down to raw data points at the bottom. To investigate this relation, Panel regression is used, which is a common method when analyzing data including both time series and cross-sectional data. Further, we evaluate if the dependencies vary across sectors, different market performance periods, time periods, and geographical regions. The results obtained show a clear general trend, that sustainability factors have had a positive impact on financial performance. However, this result diverges depending on sectors, time periods, regions, and market performance. Further, we see an increasingly positive effect from sustainability factors over time, and differences arise when analyzing individual sectors. To sum up, from results, we can not conclude that highly ranked companies, in the shape of ESG scores, have yielded higher risk premiums over the observed period.  Based on that the relation has diverged during different time periods, which implies that further outcomes become more unreliable. The relationship between sustainability factors and financial performance is not the same in all sectors, which opposes the general result. We recommend that investors should be aware when investing sustainably because sectors and time periods have a great impact on potential outcomes.