Triffin Dilemma
The Triffin dilemma is the conflict of a reserve-currency issuer: the world needs the issuer to run liabilities (deficits) for reserve supply, but those deficits eventually undermine confidence in the reserve asset.
Definition
Robert Triffin argued that under Bretton Woods, US deficits supplied the dollars the system needed, but growing official claims against a finite gold stock made the gold peg incredible. The 1971 Nixon shock is the historical resolution. Today’s version is the US NIIP and the global dollar funding system without a gold peg.
Why it matters
It is the deep structure behind ‘exorbitant privilege,’ DXY cycles, and why a US current-account deficit can be a feature of the system rather than a simple sin.
Case
1960s gold-pool stress and 1971 convertibility suspension. The post-1971 analogue is periodic dollar shortages (2008, 2020) even as the US runs deficits — the world still wants dollar liabilities.
How to read it
Separate the liquidity-supply role from solvency theater. A reserve currency can look ‘unsustainable’ on a flow identity and still be demanded in a panic.
Key papers
Landmark references with real publisher or arXiv links — not token-overlap noise.
- Gold and the Dollar CrisisTriffin · 1960 · Yale University PressThe original Triffin diagnosis.