In addition, the People’s Bank of China is far ahead of other major central banks in developing a central-bank digital currency. Although currently purely for domestic use, the PBOC’s digital currency ultimately will facilitate the renminbi’s international use, especially in countries that gravitate toward China’s eventual currency bloc. This will give the Chinese government a window into digital renminbi users’ transactions, just as the current system gives the US a great deal of similar information.
Will other Asian countries indeed follow China? The US will certainly push hard to keep as many economies as possible orbiting around the dollar, but it will be an uphill battle. Just as the US eclipsed Britain at the end of the nineteenth century as the world’s largest trading country, China long ago surpassed America by the same measure.
True, Japan and India may go their own way. But if China makes the renminbi more flexible, they will likely at the very least give the currency a weight comparable to that of the dollar in their foreign-exchange reserves.
There are striking parallels between Asia’s close alignment with the dollar today and the situation in Europe in the 1960s and early 1970s. But that era ended with high inflation and the collapse of the post-war Bretton Woods system of fixed exchange rates. Most of Europe then recognized that intra-European trade was more important than trade with the US. This led to the emergence of a Deutsche Mark bloc that decades later morphed into the single currency, the euro.
This does not mean that the Chinese renminbi will become the global currency overnight. Transitions from one dominant currency to another can take a long time. During the two decades between World Wars I and II, for example, the new entrant, the dollar, had roughly the same weight in central-bank reserves as the British pound, which had been the dominant global currency for more than a century following the Napoleonic Wars in the early 1800s.
So, what is wrong with three world currencies—the euro, the renminbi, and the dollar—sharing the spotlight? Nothing, except that neither markets nor policymakers seem remotely prepared for such a transition. US government borrowing rates would almost certainly be affected, though the really big impact might fall on corporate borrowers, especially small and medium-size firms.
Today, it seems to be an article of faith among US policymakers and many economists that the world’s appetite for dollar debt is virtually insatiable. But a modernization of China’s exchange-rate arrangements could deal the dollar’s status a painful blow.
Kenneth Rogoff, professor of economics and public policy at Harvard University and recipient of the 2011 Deutsche Bank Prize in Financial Economics, was the chief economist of the International Monetary Fund from 2001 to 2003. The co-author of "This Time is Different: Eight Centuries of Financial Folly," his new book, "The Curse of Cash," was released in August 2016.
©Project Syndicate