We study climate-related central bank communication using a novel dataset containing 35,487 speeches delivered by 131 central banks from 1986 to 2023. We employ natural language processing techniques to identify and trace the evolution of key climate-related narratives centred around (i) green finance, and (ii) climate-related financial risks. We find that central bank public communication strategies are primarily driven by underlying institutional factors, rather than exposure to climate-related risks. We then study the impact of climate-related communication on financial market dynamics through both a portfolio and a firm-level analysis. We find that equity returns of “green” firms outperform those of “dirty” firms when central banks engage more frequently and intensely with climate-related topics.
Keywords: Central banking; Climate change; Low-carbon transition; Central bank communication; Climate-related risks; Green finance; Text analysis; Topic modelling; Asset pricing.
JEL codes: C38, E44, E58, Q54, Z13.
Ce séminaire porte sur la finance solidaire et la finance à impact qui sont considérées comme des modes de financement alternatifs ou complémentaires aux circuits financiers traditionnels. Il interroge en particulier l’évolution de ces deux types de finances au regard de leurs objectifs affichés, étant donné leur essor important depuis une quinzaine d’années.
This one-day workshop brings together researchers working on the design, evaluation, and impact of climate policies aimed at fostering the development and diffusion of low-carbon technologies. The presentations will cover a range of topics including the regulation of urban transport emissions, the integration of carbon dioxide removal into energy markets, the strategic adoption of...