IMF warns dollar stablecoins risk capital flight

TLDR

An IMF working paper argues that dollar-pegged stablecoins can both improve access to US dollars and increase the risk of capital flight in economies with rigid currency controls.

1. The paper finds that dollar stablecoins boost welfare in calm periods but can significantly raise the probability and severity of currency runs during exchange rate crises.
2. By publishing a single, real-time dollar price, stablecoins help households hedge but also coordinate rapid exits from the domestic currency, especially in countries with capital controls.
3. The author recommends state-contingent rules, keeping stablecoin access open in normal times but adding temporary frictions during stress, pointing to tighter regulation ahead rather than simple bans.

Deep Dive

1. Core Message Of The IMF Paper

The IMF working paper by economist Brandon Joel Tan concludes that dollar stablecoins create a state-dependent effect: they are helpful in normal times but destabilizing in crises, especially under overvalued currency pegs, as summarized in this IMF working paper.

In simulations, average crisis exposure rises from about 3.9 percent in a cash-only system to 7.4 percent in a fully developed stablecoin regime, and under severe misalignment from 4.8 percent to 12.9 percent.

Welfare gains peak around 1.2 percent in calm conditions but turn negative once misalignment crosses a threshold, reaching losses of roughly 6.3 percent at extremes.

2. How Stablecoins Can Amplify Capital Flight

In many emerging markets, people currently rely on fragmented street or broker quotes to price dollars. Dollar stablecoins such as Tether (USDT) replace this with a single, public, continuously updated price.

The paper highlights Bolivia, where virtual-asset transactions reportedly multiplied twelvefold after restrictions were eased and the USDT to boliviano rate became the main parallel benchmark, as discussed in this Bolivia case study.

This transparent price helps households hedge exchange rate risk but also makes it easier for everyone to act at once when a peg looks unsustainable, turning individual caution into synchronized capital flight.

3. Regulatory And User Implications

Tan recommends state-contingent regulation: keep low-cost stablecoin access in normal periods, but temporarily slow large, run-like outflows when misalignment and stress are high.

He warns that broad, permanent restrictions would be regressive for unbanked users who rely on stablecoins as a substitute for broken banking systems, and stresses that rules for stablecoins cannot replace fixing underlying macro imbalances.

Conclusion

The key takeaway is not that dollar stablecoins are bad, but that they change how and how fast people can exit weak currencies.

For crypto users and issuers, the message is clear: stablecoins will sit at the center of future capital-flow rules, especially in emerging markets, with access and frictions adjusting depending on macro conditions.