The Debate
▲ Bull Case
There is no credible alternative to US dollar assets at scale. The euro, yen, and yuan cannot absorb a reallocation of global reserves. Dollar infrastructure — clearing, contracts, financing — creates structural demand no premium can fully displace.
▼ Bear Case
Foreign official demand is in secular decline. ETF and fund buyers are price-sensitive in ways central banks are not. The April 2025 episode showed coordinated selling is possible. The composition of demand has shifted from captive to discretionary at the worst possible time.
The Mechanism
The recycling chain and its fragility The US runs a current account deficit: more bought than sold. Those dollars return as investment. Historically, foreign central banks recycled them into Treasuries. Now they diversify into gold, yuan assets, and other currencies. Private capital fills the gap — but demands a return. Private buyers are also correlated: they sell together in stress, unlike reserve managers who once were buyers of last resort.
Key Voices
Bears — Captive buyers becoming discretionary
Brad Setser
Council on Foreign Relations
“The shift from official to private demand for Treasuries is the largest structural change in the market in 20 years.”
Janet Yellen
Former Treasury Secretary
“Dollar reserve status is not unconditional. Fiscal credibility must be maintained to preserve structural demand.”
Bulls — No credible alternative
Barry Eichengreen
UC Berkeley
“Slow diversification, not a sudden collapse. The network effects of dollar infrastructure are too strong to unwind quickly.”
Narrative Timeline
Archive Record
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