Applying an event study methodology, this research examines whether and how the stock market incorporated the key outcomes and statements from the COP26 summit into share prices. Our study is based on a sample of 7587 firms from four economic areas (EU, USA, China and India) belonging to the most carbon-intensive sectors. The empirical evidence shows that stock market reaction depends on how country authorities respond to commitments to accelerate and scale the transition to a greener economy, confirming that the stock market reacts negatively to stringent climate policies and positively to less stringent regulations. At the same time, in sectors emitting the most pollution, investors tend to reward companies with the best/worst environmental performance according to the type of climate policies adopted, more or less strict. Since finance is expected to play a critical role in the transition to a low-carbon economy, our results have relevant policy implications by highlighting that only clearly-defined, long-term and credible climate-related policies can lead equity investors to adequately consider environmental issues.

Just “Blah Blah Blah”? Stock Market Expectations and Reactions to COP26

Miazza, Aline;Palea, Vera
2023-01-01

Abstract

Applying an event study methodology, this research examines whether and how the stock market incorporated the key outcomes and statements from the COP26 summit into share prices. Our study is based on a sample of 7587 firms from four economic areas (EU, USA, China and India) belonging to the most carbon-intensive sectors. The empirical evidence shows that stock market reaction depends on how country authorities respond to commitments to accelerate and scale the transition to a greener economy, confirming that the stock market reacts negatively to stringent climate policies and positively to less stringent regulations. At the same time, in sectors emitting the most pollution, investors tend to reward companies with the best/worst environmental performance according to the type of climate policies adopted, more or less strict. Since finance is expected to play a critical role in the transition to a low-carbon economy, our results have relevant policy implications by highlighting that only clearly-defined, long-term and credible climate-related policies can lead equity investors to adequately consider environmental issues.
2023
1
13
Stock market Climate change Event study COP26 Green economy
Birindelli, Giuliana; Miazza, Aline; Paimanova, Viktoriia; Palea, Vera
File in questo prodotto:
File Dimensione Formato  
Event_Study_1005_RESEARCH GATE.pdf

Accesso riservato

Dimensione 673.71 kB
Formato Adobe PDF
673.71 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1907931
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 11
  • ???jsp.display-item.citation.isi??? 9
social impact