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Dynamic spillovers and portfolio implication between green cryptocurrencies and fossil fuels

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  • Zaghum Umar
  • Sun-Yong Choi
  • Tamara Teplova
  • Tatiana Sokolova

Abstract

Are green investments decoupled from the dirty investment such as the fossil fuel markets? We address this issue by extending the literature on environmental, social, and governance (ESG) assets by examining the dynamic relationship between fossil fuels and digital ESG assets proxied by green cryptocurrencies using the TVP-VAR(Time-varying parameter vector auto regression) spillover framework. Furthermore, we analyze the hedging attributes of green cryptocurrencies and fossil fuels in a minimum connectedness framework. The main findings are as follows: First, green cryptocurrencies are the main shock transmitters in all asset systems. Second, the dynamic connectedness between green cryptocurrencies and fossil fuels increased during the COVID-19 and Russia-Ukraine conflicts. Third, green cryptocurrencies have shown considerable hedging effectiveness against the fossil fuels. Our study has important implications for investors, regulators, and policy makers, such as shifting to green cryptocurrencies, regulation of carbon footprint, and promoting eco-friendly assets.

Suggested Citation

  • Zaghum Umar & Sun-Yong Choi & Tamara Teplova & Tatiana Sokolova, 2023. "Dynamic spillovers and portfolio implication between green cryptocurrencies and fossil fuels," PLOS ONE, Public Library of Science, vol. 18(8), pages 1-14, August.
    • Handle: RePEc:plo:pone00:0288377
    DOI: 10.1371/journal.pone.0288377
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    References listed on IDEAS

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    1. Johannes Sedlmeir & Hans Ulrich Buhl & Gilbert Fridgen & Robert Keller, 2020. "The Energy Consumption of Blockchain Technology: Beyond Myth," Business & Information Systems Engineering: The International Journal of WIRTSCHAFTSINFORMATIK, Springer;Gesellschaft für Informatik e.V. (GI), vol. 62(6), pages 599-608, December.
    2. Pham, Linh & Karim, Sitara & Naeem, Muhammad Abubakr & Long, Cheng, 2022. "A tale of two tails among carbon prices, green and non-green cryptocurrencies," International Review of Financial Analysis, Elsevier, vol. 82(C).
    3. Nikolaos Antonakakis & Ioannis Chatziantoniou & David Gabauer, 2020. "Refined Measures of Dynamic Connectedness based on Time-Varying Parameter Vector Autoregressions," JRFM, MDPI, vol. 13(4), pages 1-23, April.
    4. Camilo Mora & Randi L. Rollins & Katie Taladay & Michael B. Kantar & Mason K. Chock & Mio Shimada & Erik C. Franklin, 2018. "Bitcoin emissions alone could push global warming above 2°C," Nature Climate Change, Nature, vol. 8(11), pages 931-933, November.
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    1. Iqbal, Najaf & Umar, Zaghum & Shaoyong, Zhang & Sokolova, Tatiana, 2025. "Higher moments interaction between the US treasury yields, energy assets, and green cryptos: Dynamic analysis with portfolio implications," Energy Economics, Elsevier, vol. 141(C).
    2. Yousaf, Imran & Cui, Jinxin & Ali, Shoaib, 2024. "Dynamic spillover between green cryptocurrencies and stocks: A portfolio implication," International Review of Economics & Finance, Elsevier, vol. 96(PB).

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