Why Don’t ESG Ratings Agree?
ESG (environmental, social, and governance) investing has become a popular choice for many investors. But how reliable are the ratings of the agencies that evaluate stocks for their ESG performance? What kind of discrepancies or “ESG noise” is found among such ratings, and can this be reduced? On October 5, 2023, Roberto Rigobon, assistant professor at the Sloan School of Management at Massachusetts Institute of Technology (MIT), posed these questions during a webinar was part of the series of talks sponsored by the Federal Reserve Bank of San Francisco (FRBSF), titled the Virtual Seminar on Climate Economics. His webinar was […]
Monitoring Risk While Pursuing High Returns: The Importance of Being Quantitative
“A quantitative model provides a very different insight than a rating,” said Rajan Singenellore, Global Business Manager of Risk & Valuations at Bloomberg. Models are based on objective inputs and usually publicly available information, whereas ratings are based on subjective factors and inside information. Singenellore was speaking about quantitative models as the second part of a two-part webinar presentation “Monitoring Risk While Pursuing High Returns” on March 7, 2013 organized by the Global Association of Risk Professionals (GARP). “A quantitative model lets you understand risk drivers and sensitivities,” he said, such as the effects of input changes on default risk […]
Monitoring Risk While Pursuing High Returns: Who Pays the Piper?
“Rating biases affect how we think about methodologies,” said Elliot Noma, Managing Director at Garrett Asset Management. “A rating agency paid by the issuer will likely give the firm the benefit of the doubt,” whereas a rating agency paid by the investor might want to more stringently evaluate the firm. “Both evaluations have the risk of error” due to bias. Noma was speaking about evaluation of credit risk as part of the webinar presentation “Monitoring Risk While Pursuing High Returns” on March 7, 2013 organized by the Global Association of Risk Professionals (GARP). He began by dividing non-structured credit exposure […]