For decades the dollar has served as the world's main reserve currency, but, argues Barry Eichengreen, it will soon have to share that role. Here's why—and what it will mean for international markets and companies.
Wall Street Journal's David Wessel sits down with three senior experts in international finance - Edwin M. Truman, Joseph E. Gagnon and Eswar Prasad - for a discussion on the major issues facing currencies and the global economy.
The single most astonishing fact about foreign exchange is not the high volume of transactions, as incredible as that growth has been. Nor is it the volatility of currency rates, as wild as the markets are these days. Instead, it's the extent to which the market remains dollar-centric.
The greenback, in other words, is not just America's currency. It's the world's. But as astonishing as that is, what may be even more astonishing is this: The dollar's reign is coming to an end. I believe that over the next 10 years, we're going to see a profound shift toward a world in which several currencies compete for dominance.
The impact of such a shift will be equally profound, with implications for, among other things, the stability of exchange rates, the stability of financial markets, the ease with which the U.S. will be able to finance budget and current-account deficits, and whether the Fed can follow a policy of benign neglect toward the dollar.
The Three Pillars
How could this be? How could the dollar's longtime most-favored-currency status be in jeopardy?
First, its allure reflects the singular depth of markets in dollar-denominated debt securities. The sheer scale of those markets allows dealers to offer low bid-ask spreads. This makes the dollar the most convenient currency in which to do business for corporations, central banks and governments alike.
Second, there is the fact that the dollar is the world's safe haven. In crises, investors instinctively flock to it, as they did following the 2008 failure of Lehman Brothers. This tendency reflects the exceptional liquidity of markets in dollar instruments, liquidity being the most precious of all commodities in a crisis. It is a product of the fact that U.S. Treasury securities, the single most important asset bought and sold by international investors, have long had a reputation for stability.
Finally, the dollar benefits from a dearth of alternatives. Other countries that have long enjoyed a reputation for stability, such as Switzerland, or that have recently acquired one, like Australia, are too small for their currencies to account for more than a tiny fraction of international financial transactions.
What's Changing
First, changes in technology are undermining the dollar's monopoly. Not so long ago, there may have been room in the world for only one true international currency. Given the difficulty of comparing prices in different currencies, it made sense for exporters, importers and bond issuers all to quote their prices and invoice their transactions in dollars, if only to avoid confusing their customers. Now, however, nearly everyone carries hand-held devices that can be used to compare prices in different currencies in real time.
Second, the dollar is about to have real rivals in the international sphere for the first time in 50 years. There will soon be two viable alternatives, in the form of the euro and China's yuan.
Americans especially tend to discount the staying power of the euro, but it isn't going anywhere. Contrary to some predictions, European governments have not abandoned it. Nor will they. They will proceed with long-term deficit reduction, something about which they have shown more resolve than the U.S. And they will issue "e-bonds"—bonds backed by the full faith and credit of euro-area governments as a group—as a step in solving their crisis. This will lay the groundwork for the kind of integrated European bond market needed to create an alternative to U.S. Treasurys as a form in which to hold central-bank reserves.
China, meanwhile, is moving rapidly to internationalize the yuan, also known as the renminbi. The last year has seen a quadrupling of the share of bank deposits in Hong Kong denominated in yuan. Seventy thousand Chinese companies are now doing their cross-border settlements in yuan. Dozens of foreign companies have issued yuan-denominated "dim sum" bonds in Hong Kong. In January the Bank of China began offering yuan-deposit accounts in New York insured by the Federal Deposit Insurance Corp.
Admittedly, China has a long way to go in building liquid markets and making its financial instruments attractive to international investors. We Westerners have underestimated China before. We should not make the same mistake again.
Finally, there is the danger that the dollar's safe-haven status will be lost. Foreign investors—private and official alike—hold dollars not simply because they are liquid but because they are secure. The U.S. government has a history of honoring its obligations, and it has always had the fiscal capacity to do so.
But now, mainly as a result of the financial crisis, federal debt is approaching 75% of U.S. gross domestic product. Trillion-dollar deficits stretch as far as the eye can see. And as the burden of debt service grows heavier, questions will be asked about whether the U.S. intends to maintain the value of its debts or might resort to inflating them away.
U.S. Impact
In this new monetary world, moreover, the U.S. government will not be able to finance its budget deficits so cheaply, since there will no longer be as big an appetite for U.S. Treasury securities on the part of foreign central banks.
Nor will the U.S. be able to run such large trade and current-account deficits, since financing them will become more expensive. On the other hand, the next time the U.S. has a real-estate bubble, we won't have the Chinese helping us blow it.
Dr. Eichengreen is the George C. Pardee and Helen N. Pardee professor of economics and political science at the University of California, Berkeley. His new book is "Exorbitant Privilege: The Rise and Fall of the Dollar and the Future of the International Monetary System." He can be reached at reports@wsj.com.
