Dynamic comparison of portfolio risk: Clean vs dirty energy

Gargallo, P. (Universidad de Zaragoza) ; Lample, L. (Universidad de Zaragoza) ; Miguel, J. (Universidad de Zaragoza) ; Salvador, M. (Universidad de Zaragoza)

Resumen: This paper analyses whether investing in clean energy significantly worsens the risk level of investors. To that aim, we propose a dynamic strategy to carry out a comparative risk analysis of three minimum-variance portfolios: a portfolio made up exclusively of dirty energies, a portfolio made up only of clean energy assets, and a portfolio combined with the two types of energies. To that aim, we use multivariate GARCH models, concretely Asymmetric Dynamic Conditional Correlations models (ADCC-GARCH) to predict the variance and covariance matrices of the daily asset returns and we compare the portfolio volatilities using the methodology proposed by Engle and Colacito (2006). The analysed period was from January 2010 to September 2021, so that the data include half of phase II, full phase III and the onset of phase IV of the EU ETS, as well as the Brexit and COVID-19 outbreaks in the European context. Our results show that, unlike what happened in other economic crises (subprime, Brexit), from the pandemic crisis, the investment in clean energies is preferable to fossil energies, not only in terms of profitability, as other studies have shown, but also in terms of risk. Therefore, investing in clean energy companies, which are aligned with their role towards socially responsible initiatives, is valuable not only for its contribution to a sustainable energy transition to renewable sources but also for the attractiveness from a financial point of view. © 2022 The Author(s)

Idioma: Inglés

DOI: 10.1016/j.frl.2022.102957

Año: 2022

Publicado en: Finance Research Letters 47, 102957 (2022), -
ISSN: 1544-6123

Factor impacto JCR: 10.4 (2022)

Categ. JCR: BUSINESS, FINANCE rank: 1 / 111 = 0.009 (2022) - Q1 - T1

Factor impacto CITESCORE: 10.8 - Economics, Econometrics and Finance (Q1)

Factor impacto SCIMAGO: 2.231 - Finance (Q1)

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Métodos Cuant.Econ.Empres (Dpto. Economía Aplicada)
Área (Departamento): Área Economía Finan. y Contab. (Dpto. Contabilidad y Finanzas)