We explore whether positive ESG (environment, social, and governance) performance causes changes in labor productivity. We use a random coefficient model to estimate the distribution of the ESG-labor productivity relationship across a large sample of US and European firms. The mean effect of ESG performance on labor productivity is statistically significant and positive in some sectors and significant and negative in others, while the variance of the relationship is always larger than the mean effect and statistically and economically significant. We find this variance is greater within than across sectors, suggesting significant firm-level variation in the returns to ESG. To examine the causal effect of revealing ESG performance, we examine the 2013 UK regulation mandating standardized greenhouse gas emissions reporting. We find that treated firms with better-than-expected ESG performance experienced an increase in labor productivity post-regulation, while treated firms with worse than expected ESG performance saw decreased labor productivity, relative to both pre-treatment trends and a control group. The combination of the correlational and regulatory studies suggests that positive ESG performance positively impacts labor productivity when institutional structures reveal ESG information to stakeholders but has both positive and negative correlations with labor productivity in a population of large firms.
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