The advantages this system bestows on the US are enormous. “Reserve currency status” generates huge demand for dollars from governments and companies around the world, as they’re needed for reserves and trade. This has allowed successive American administrations to spend far more, year-in year-out, than is raised in tax and export revenue.
By the early Seventies, US economic dominance was so assured that even after President Nixon reneged on the dollar’s previously unshakeable convertibility into gold, amounting to a massive default, dollar demand kept growing.
So America doesn’t worry about balance of payments crises, as it can pay for imports in dollars the Federal Reserve can just print. And Washington keeps spending willy-nilly, as the world buys ever more Treasuries on the strength of regulatory imperative and the vast liquidity and size of the market for US sovereign debt.
It is this “exorbitant privilege” – as French statesman Valéry Giscard d’Estaing once sourly observed – that has been the bedrock of America’s post-war hegemony. It is the status of the dollar, above all, that’s allowed Washington to get its way, putting the financial squeeze on recalcitrant countries via the IMF while funding foreign wars. To understand politics and power it pays to follow the money. And for the past 70 years, the dollar has ruled the roost.