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Private money and public debt. U.S. Stablecoins and the global safe asset channel

Author

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  • Ferrari Minesso, Massimo
  • Siena, Daniele

Abstract

This paper studies the international macro-financial implications of U.S. dollar-backed payment stablecoins. These digital assets create a new global safe asset channel that links private money creation and global payment needs directly to U.S. public debt. By reshaping the demand for safe assets and the geography of dollar intermediation, stablecoins transform the dynamics of global financial markets, generating new trade-offs, also for the U.S.: even if they widen the dollar’s global footprint and compress U.S. risk-free yields, they entail non-trivial macro-financial costs. Stablecoins dampen the domestic real effects of U.S. monetary policy and increase both U.S. and foreign exposure to cross-country shocks, making a more digital, dollar-centric reserve system less stable. These effects are limited at low adoption levels but rise non-linearly with stablecoin capitalization, reshaping the functioning of the international financial system. JEL Classification: G15, E42, E44, E52, F3

Suggested Citation

  • Ferrari Minesso, Massimo & Siena, Daniele, 2026. "Private money and public debt. U.S. Stablecoins and the global safe asset channel," Working Paper Series 3174, European Central Bank.
    • Handle: RePEc:ecb:ecbwps:20263174
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    JEL classification:

    • G15 - Financial Economics - - General Financial Markets - - - International Financial Markets
    • E42 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Monetary Sytsems; Standards; Regimes; Government and the Monetary System
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • F3 - International Economics - - International Finance

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