European Central Bank report warns: Widespread adoption of stablecoins threatens the monetary sovereignty of the Eurozone

Researchers at the European Central Bank (ECB) have published a working paper warning that widespread adoption of stablecoins could pose significant risks to the euro area banking system and the ECB’s monetary sovereignty, especially in a context where foreign currency-denominated instruments such as the US dollar dominate. This could introduce external currency conditions into the eurozone and increase uncertainty in the transmission of monetary policy.

Core Risk Identification Framework of the Working Paper

This jointly authored working paper by multiple ECB researchers identifies three main transmission channels through which the widespread adoption of stablecoins could impact the euro area’s monetary system.

First, rapid expansion could trigger large-scale reallocation of funds from retail bank deposits into digital assets, weakening the stability of banks’ funding sources; second, impaired banking intermediation could reduce the effectiveness of ECB policy rate transmission to actual lending volumes; third, if the stablecoin market is dominated by non-euro-denominated instruments, the impact could be significantly amplified—fluctuations in demand for foreign currency-denominated stablecoins may directly transmit external currency and financial shocks into the euro area.

The document states: “Demand fluctuations for foreign currency-pegged stablecoins could transmit external currency and financial shocks directly into the euro area, effectively introducing external liquidity conditions that may be orthogonal to domestic policy stances.”

Policy Context: Trump’s Crypto Policies Trigger European Regulatory Vigilance

The release of this ECB working paper coincides with the Trump administration actively promoting mainstream adoption of cryptocurrencies, raising broad concerns about the potential expansion of US dollar-backed stablecoins in European markets. ECB Executive Board member Piero Cipollone previously stated in January that such tools could “threaten financial stability”; meanwhile, German Bundesbank President Joachim Nagel has expressed a more positive view, emphasizing the potential benefits of euro-pegged stablecoins in payment scenarios.

Currently, major European banks such as Citigroup, ING, UniCredit, and DekaBank are collaborating on developing regulated euro stablecoins, seen as an active European response to counter the expansion of dollar-denominated stablecoins.

Key Risk Points Identified in the ECB Working Paper

Deposit Reallocation: Rapid expansion may lead to large-scale transfer of retail deposits into digital assets, weakening banks’ funding base.

Impaired Intermediation: Unstable bank funding sources reduce credit provisioning capacity, impacting real economy financing.

Reduced Policy Transmission Effectiveness: ECB rate adjustments face obstacles in transmission to the loan market, weakening monetary policy effectiveness.

Amplification by Foreign Currency Stablecoins: When dollar and other foreign currency stablecoins dominate the market, external currency shocks can enter the euro area directly without ECB control.

Wholesale Financing Risks: Banks may increase reliance on foreign currency wholesale funding, further diminishing sensitivity to ECB policy stance.

Frequently Asked Questions

What exactly does the ECB mean by the “monetary sovereignty” risk?

The ECB’s monetary sovereignty refers to its ability to effectively influence borrowing costs and credit flows in the euro area through policy rate adjustments. When large funds shift from ECB-regulated bank deposits to foreign currency-denominated stablecoins, the ECB’s policy tools have significantly less influence over these funds, weakening the transmission of interest rate decisions.

Why are US dollar stablecoins more threatening to European monetary policy than euro stablecoins?

Euro stablecoins’ reserves and operations are still under ECB regulation, maintaining relatively complete monetary policy transmission channels. In contrast, the liquidity and value of US dollar-denominated stablecoins are determined by the Federal Reserve’s policies. Once widely circulated in the euro area, they effectively introduce US monetary conditions directly into European markets, bypassing ECB tools and creating a direct channel for external currency shocks.

Can the joint development of euro stablecoins by European banks effectively address ECB’s risk concerns?

The euro stablecoin plans led by institutions like Citigroup, ING, UniCredit, and DekaBank align somewhat with the ECB’s stance—German Bundesbank President Nagel has expressed a positive attitude toward euro stablecoins in payment applications. If euro stablecoins can compete with dollar stablecoins in scale and usability, they may reduce users’ motivation to switch to foreign currency tools. However, specific regulatory frameworks and launch timelines remain unclear.