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Cryptocurrencies and decentralised finance: functions and financial stability implications

Author

Listed:
  • Matteo Aquilina
  • Giulio Cornelli
  • Jon Frost
  • Leonardo Gambacorta

Abstract

Cryptocurrencies and decentralised finance (DeFi) aim to replicate many of the economic functions of traditional finance (TradFi), but their distinctive features introduce new financial stability risks. We analyse these features, and examine key developments, such as smart contracts, decentralised exchanges (DEXs), stablecoins and new forms of central bank money. Our findings suggest that while the underlying economic drivers are not different than in TradFi, DeFi poses significant challenges, including new forms of information asymmetries, market inefficiencies and the risk of cryptoisation in emerging markets. We propose tailored regulatory interventions, such as embedding rules within smart contracts and strengthening the oversight of stablecoins, to manage financial stability risks. Finally, we provide a framework for prudential regulation that can mitigate risks while fostering innovation in the rapidly evolving crypto ecosystem.

Suggested Citation

  • Matteo Aquilina & Giulio Cornelli & Jon Frost & Leonardo Gambacorta, 2025. "Cryptocurrencies and decentralised finance: functions and financial stability implications," BIS Papers, Bank for International Settlements, number 156.
    • Handle: RePEc:bis:bisbps:156
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    References listed on IDEAS

    as
    1. Robert C. Merton, 1995. "A Functional Perspective of Financial Intermediation," Financial Management, Financial Management Association, vol. 24(2), Summer.
    2. Douglas Arner & Raphael Auer & Jon Frost, 2020. "Stablecoins: risks, potential and regulation," Revista de Estabilidad Financiera, Banco de España, issue Otoño.
    3. Douglas Arner & Raphael Auer & Jon Frost, 2020. "Stablecoins: risks, potential and regulation," Financial Stability Review, Banco de España, issue Autumn.
    4. Sirio Aramonte & Andreas Schrimpf & Hyun Song Shin, 2023. "Non-bank financial intermediaries and financial stability," Chapters, in: Refet S. Gürkaynak & Jonathan H. Wright (ed.), Research Handbook of Financial Markets, chapter 7, pages 147-170, Edward Elgar Publishing.
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    6. Grossman, Sanford J & Stiglitz, Joseph E, 1980. "On the Impossibility of Informationally Efficient Markets," American Economic Review, American Economic Association, vol. 70(3), pages 393-408, June.
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