Comparison of the asymmetric multifractal behavior of green and U.S. bonds against benchmark financial assets

Werner Kristjanpoller () and Benjamin Miranda Tabak ()
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Werner Kristjanpoller: Universidad Técnica Federico Santa María
Benjamin Miranda Tabak: Getulio Vargas Foundation (FGV/EPPG)

Financial Innovation, 2025, vol. 11, issue 1, 1-28

Abstract: Abstract Presently, financial portfolio managers lack a solid basis for building a reliable risk management strategy for green debt instrument investments due to the lack of compelling growth and resilience data. Therefore, this study assesses the role of green bonds in financial markets by assessing and correlating their complex scaling behaviors across multiple periods with those of key benchmark assets (e.g., conventional bonds, high-yield bonds, Euro-Dollar exchange, Dow Jones Industrial Index, Bitcoin, and Gold). Specifically, we explore linear and nonlinear correlation patterns using cross-correlation tests and the dynamic conditional correlation model, focusing on bond interactions under various degrees of freedom. Our analysis reveals that although most assets exhibit nonlinear correlations, Bitcoin uniquely aligns linearly with U.S. bonds under certain conditions. Green bonds, however, display nonlinear correlations with Bitcoin and stand out for their distinct upward financial persistence. We find also that green bonds are primary drivers in the financial domain, highlighted by their pronounced interactions and the consistent cross-correlation with the Euro-Dollar exchange rate. Moreover, green bonds have the lowest multifractality, showing persistent upward trends and antipersistent downward trends, rendering them quite resilient during periods of high volatility. These results imply that green bonds may be advantageous to portfolio risk management strategies, especially during crises when diversification and hedging tactics are needed.

Keywords: Green bonds; Bonds; Multifractality; Asymmetric cross-correlations; Complexity; High-yield bonds (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1186/s40854-024-00698-0

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