Abstract The mere marketing of firms as environmentally friendly does not mean that the firms are genuinely green. In this paper, we propose a new measure, Green Score , to capture firms’ investment in green human capital based on the concentration of green skills required in firms’ job postings. First, we find that firms that increase their Green Score have higher future profitability. Second, firms that increase their Green Score generate more green patents, and those green patents are of higher quality and receive more citations. Third, traditional ratings widely used to evaluate firms’ environmental efforts do not consider firms’ Green Score . Overall, our new action-based measure is simpler and less subjective and it offers a larger time-series variation than traditional disclosure-based environmental ratings.

We examine the effect of CSR information on stakeholder decision-making, specifically on supply-chain contracting. To obtain plausibly exogenous variation in CSR information, we exploit the 2017 expansion of CSR rating coverage from Russell 1000 to Russell 2000 firms (hereafter, “treated firms”) by Thomson Reuters Asset4. Using a difference-in-differences design with the previously covered Russell 1000 supplier firms as the control group, we find a negative effect of the CSR information shock for treated suppliers with comparatively low CSR ratings. On average, these suppliers experience reductions in their number of contracts and corporate customers. In cross-sectional analyses, we document variation in our treatment effects consistent with two underlying mechanisms: (i) benchmarking of suppliers' CSR by corporate customers and (ii) CSR-related public pressure on customer-supplier contracting. Collectively, our findings provide novel evidence on the causal effect of CSR information on stakeholder decision-making.