Flynt Leverett and Hillary Mann Leverett on ‘The Rise of the Petroyuan and the Slow Erosion of Dollar Hegemony’:
Since World War II, America’s geopolitical supremacy has rested not only on military might, but also on the dollar’s standing as the world’s leading transactional and reserve currency. Economically, dollar primacy extracts “seignorage” — the difference between the cost of printing money and its value — from other countries, and minimises U.S. firms’ exchange rate risk. Its real importance, though, is strategic: dollar primacy lets America cover its chronic current account and fiscal deficits by issuing more of its own currency – precisely how Washington has funded its hard power projection for over half a century.
Since the 1970s, a pillar of dollar primacy has been the greenback’s role as the dominant currency in which oil and gas are priced, and in which international hydrocarbon sales are invoiced and settled. This helps keep worldwide dollar demand high. It also feeds energy producers’ accumulation of dollar surpluses that reinforce the dollar’s standing as the world’s premier reserve asset, and that can be “recycled” into the U.S. economy to cover American deficits.