Susana Álvarez-Diez , J. Samuel Baixauli-Soler , Gabriel Lozano-Reina , Diego Rodríguez-Linares Rey
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Block connectedness between the EU-ETS and corporate returns: Evidence from high- and low-emission firms
This study analyzes volatility transmission between the EU-ETS –used here as a proxy for carbon price dynamics– and the stock returns of European firms with varying emission levels during the third and fourth phases of the EU-ETS (from January 01, 2013 to April 30, 2025), applying a connectedness framework that integrates time-frequency decomposition and block-level analysis. The empirical evidence confirms that carbon market volatility significantly affects corporate financial dynamics, especially in the short term and particularly for high-emission firms. These results validate the three hypotheses posed: (i) there is statistically significant volatility connectedness between carbon and stock markets; (ii) short-term spillovers dominate; and (iii) high-emission firms are more exposed to volatility transmission than their low-emission counterparts. These findings are robust across two different classification criteria and highlight the relevance of carbon pricing not only as an environmental policy tool but also as a financial market signal.
期刊介绍:
The purpose of the journal is also to stimulate international dialog among academics, industry participants, traders, investors, and policymakers with mutual interests in commodity markets. The mandate for the journal is to present ongoing work within commodity economics and finance. Topics can be related to financialization of commodity markets; pricing, hedging, and risk analysis of commodity derivatives; risk premia in commodity markets; real option analysis for commodity project investment and production; portfolio allocation including commodities; forecasting in commodity markets; corporate finance for commodity-exposed corporations; econometric/statistical analysis of commodity markets; organization of commodity markets; regulation of commodity markets; local and global commodity trading; and commodity supply chains. Commodity markets in this context are energy markets (including renewables), metal markets, mineral markets, agricultural markets, livestock and fish markets, markets for weather derivatives, emission markets, shipping markets, water, and related markets. This interdisciplinary and trans-disciplinary journal will cover all commodity markets and is thus relevant for a broad audience. Commodity markets are not only of academic interest but also highly relevant for many practitioners, including asset managers, industrial managers, investment bankers, risk managers, and also policymakers in governments, central banks, and supranational institutions.