One Step Forward, Two Steps Back? Stablecoins and the Global Dollar System

One Step Forward, Two Steps Back? Stablecoins and the Global Dollar System

CLS Blue Sky Blog (Columbia Law School)
CLS Blue Sky Blog (Columbia Law School)May 12, 2026

Key Takeaways

  • Dollar stablecoins could cement U.S. “exorbitant privilege” globally
  • GENIUS Act mandates 1:1 backing but lacks offshore coverage
  • Stablecoins’ bearer nature hampers U.S. AML and sanctions enforcement
  • Runs on stablecoins could mirror 2007‑08 shadow‑bank crises
  • Deposit‑insurance or KYC‑linked tokens proposed but face political resistance

Pulse Analysis

The rise of dollar‑stablecoins is reshaping the architecture of global payments. By anchoring digital tokens to the U.S. currency, issuers promise near‑instant settlement and low‑cost transfers, appealing to businesses that already rely on the dollar for cross‑border trade. This digital layer could further entrench the United States’ “exorbitant privilege,” allowing it to finance deficits at lower rates while maintaining unrivaled demand for dollar‑denominated assets. Yet the very mechanisms that make stablecoins attractive—transparent blockchain ledgers and algorithmic peg maintenance—also expose new vulnerabilities that regulators are only beginning to address.

Financial‑stability concerns stem from the fact that stablecoins function like bank deposits: they are promises to redeem a token for one dollar, backed by a pool of assets. The GENIUS Act attempts to mitigate run risk by mandating a 1:1 reserve of low‑risk securities, but history shows that risk‑based constraints alone cannot stop panic withdrawals, especially when large holders can arbitrage the system. Moreover, the legislation’s jurisdiction stops at U.S. issuers, leaving offshore stablecoins—where most volume now resides—unregulated. Should a crisis hit these offshore tokens, the Federal Reserve may be forced to inject liquidity, echoing the emergency dollar swaps used during the 2008 crisis and adding strain to an already stressed global dollar market.

Beyond stability, stablecoins challenge the United States’ ability to weaponize the dollar for law‑enforcement and foreign‑policy goals. Traditional dollar flows pass through U.S.‑regulated banks subject to KYC, AML, and sanctions reporting, giving agencies like FinCEN a clear audit trail. Bearer tokens, however, can move through unhosted wallets that evade such oversight, making it harder to identify illicit actors or freeze assets. While the GENIUS Act requires issuers to retain freeze capabilities, it offers no practical method for pinpointing the target wallets, especially offshore. Proposals such as mandatory KYC‑linked wallets or deposit‑insurance schemes could restore some control, but they face stiff political opposition. Consequently, the dollar may gain digital market share, but at the expense of the very tools that have long underpinned its geopolitical leverage.

One Step Forward, Two Steps Back? Stablecoins and the Global Dollar System

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