Senior central bankers are warning that fast‑growing US dollar stablecoins could weaken weaker currencies and reduce monetary control. They say these tokens make it easier for people and businesses in emerging markets to hold and move digital dollars outside local banking systems.
The majority of stablecoins, which currently hold over 90% of the market by value, are tied to the US dollar, according to the Bank for International Settlements (BIS). As noted by the BIS, this trend may raise the possibility of capital flight during stressful times and jeopardize “monetary sovereignty” in some nations.
IMF and academic reports describe this shift as “digital dollarization,” where people use dollar tokens alongside or instead of national currencies. That can make central banks’ tools, such as interest rates and capital controls, less effective, especially in smaller or fragile economies.
Crime, Sanctions Evasion and “Shadow” Payment Rails
Central banks and policy bodies also link dollar stablecoins to higher risks of money laundering, sanctions evasion, and other financial crimes. A Brookings study notes that stablecoins and offshore exchanges can help smugglers and sanctioned actors move funds around traditional banking and sanctions “plumbing.”
The IMF warns that stablecoins can create parallel payment channels that bypass banks and official cross‑border systems. In practice, this means large, fast flows of digital dollars can move in and out of countries with fewer checks than bank transfers.
Researchers also highlight national security concerns. They say hostile states and non‑state groups may prefer dollar stablecoins because they are widely accepted yet harder to police than bank wires.
Why Emerging Markets Feel Most Exposed
Central banks in emerging markets say they feel the pressure first. Many of these countries already face informal dollarization, where residents save in cash dollars to escape inflation or currency volatility. Dollar stablecoins now offer a digital version of that escape route.
The IMF and BIS note that when people shift savings and payments into US‑pegged tokens, local banks lose deposits and cheap funding. That can push up funding costs, limit credit, and weaken domestic financial stability.
At the same time, heavy use of foreign stablecoins can make exchange rates more volatile. Capital can rush out of a country during a crisis through stablecoin rails, even if formal capital controls are in place.
Policymakers are now pushing for tighter global rules on stablecoin issuers and their reserves.
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