COURNOT Seminar – Jean-Charles GARIBAL (EM Grenoble)

Event details :

Cross‑dispersion bias‑adjusted ESG rankings

We study the formation of ESG scores and rankings. In particular, we investigate the impact of aggregation rules when combining information on firms across categories, notably the E, S and G categories, into single ESG scores. Usual aggregation rules may bias scores toward the most dispersed category. We suggest a correction for this dispersion bias. We apply this correction to scores provided by two of the main score providers: Refinitiv and Bloomberg. We also provide simulation evidences. We show that the cross-dispersion bias may have a significant impact on ESG scores formation and that our proposed adjustment tends to weather it.

Zoom link for the seminar : https://us02web.zoom.us/j/84441093898?pwd=bG5sMHh3N3FHeUk0TkF4S0JWbkdHZz09

ID de réunion : 844 4109 3898
Code secret : 372756

Jean-Charles Garibal’s webpage : https://www.grenoble-em.com/annuaire/jean-charles-garibal

Pageweb du séminaire : https://beta-economics.fr/seminaires-cournot-2023-2024/