Stablecoins as anchors? Unraveling information flow dynamics between pegged and unpegged crypto-assets and fiat currencies

Rafael Baptista Palazzi, Sebastian Schich and Alan de Genaro

Journal of International Financial Markets, Institutions and Money, 2025, vol. 99, issue C

Abstract: This study empirically investigates the potential of stablecoins to act as anchors within the volatile cryptocurrency market, using a novel conceptual framework that defines an anchor asset in three dimensions relative to other assets, namely stability, independence, and resilience. To assess these three dimensions, we employ three distinct methods to analyze the linear and nonlinear relationships between stablecoins (Tether, USD Coin, and Binance USD), the top three unpegged crypto-assets (Bitcoin, Ethereum, and Binance), and the three most heavily traded fiat currencies after the US dollar (EUR, JPY, and GBP), all denominated in USD. Specifically, we utilize Granger causality, asymmetric dynamic conditional correlation (ADCC)-GARCH, and transfer entropy approaches. These methods help us examine volatility spillover effects among the three types of assets. Our resilience criteria requires us to measure market liquidity, which we do by employing the turnover ratio weighted by market capitalization and the approach proposed by Abdi and Ranaldo (2017). The results challenge the notion that stablecoins are robust anchors in the sense that they are more stable, independent, or resilient than other types of assets, and cast doubt on the suggestion that stablecoins might become a useful means of exchange that provide a private alternative to existing fiat currencies.

Keywords: Stablecoins; Transfer entropy; Fiat currencies; Cryptoassets; Anchor (search for similar items in EconPapers)
JEL-codes: C22 F31 G15 (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:intfin:v:99:y:2025:i:c:s1042443124001744

DOI: 10.1016/j.intfin.2024.102108

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