Unlocking forecast quality: the power of material sustainability disclosures

In 2013, the Sustainability Accounting Standards Board (SASB) began releasing guidelines to identify material (or financially relevant) sustainability metrics. This study investigates the effects of material and immaterial sustainability activities on analyst forecast error and dispersion. We further examine how these effects are influenced by the issuance of stand-alone sustainability reports and the release of SASB’s material sustainability standards. Using a sample of US firms from 2005 to 2018, we find that material sustainability activities are associated with more accurate and less dispersed analyst forecasts when firms issue stand-alone sustainability reports. Among firms that do not release such reports, material sustainability activities improve forecast quality only after the initial release of the SASB standards. Immaterial sustainability activities appear to add noise to information in the financial market and confound earnings forecasts, especially during the pre-SASB period, but this confounding effect reverses in the post-SASB period. Overall, our findings provide empirical evidence that classifying and disclosing corporate sustainability activities yield economic and informational benefits in capital markets.