Back in August, then-Bank of England Governor Mark Carney gave aspeech in Jackson Hole, Wyo., about the problem of the U.S. dollar. The issue, as he identified it, was not that the dollar’s fundamentals are weak, but that they’retoo strong. Even as the U.S.’s share of worldwide gross domestic product steadily shrinks, the dollar’s share of global transactions has only grown. This mismatch proves dangerous when, in the process of fulfilling its domestic mandate, the Federal Reserve makes moves that have huge ripple effects around the world.
Why is the dollar so popular? For years people have been crying about how U.S. policymakers have abused its strength and unique global position. They point to the burgeoning Fed balance sheet, the massive national debt, or the huge trade deficit that the U.S. has run with the rest of the world. But the simple fact is that people use the dollar because other people use the dollar. As fund manager Eric Lonergan has argued, a currency is like a social network or a language. People learn English because other people speak English. People use Facebook because their friends and family use Facebook. And if you’re doing business around the world, there’s a good chance you’re using dollars because that’s what other people are using.
Of course, nobody has to do any of these things. There are movements made up of people who proudly reject linguistic monoculture, who focus their efforts on preserving endangered languages rather than accepting the inevitability of English. There are those who don’t use Facebook (or any social media) and instead communicate and socialize in other ways. To make these choices means giving up some efficiency in favor of some other value.
This trade-off—giving up efficiency in exchange for something else—is precisely what people are talking about as they discuss what a post-Covid-19 society will look like. The failure of rich countries (notably the U.S.) to source basic equipment has increased calls for domestic manufacturing and placed a renewed focus on the resilience of supply chains instead of their optimization or efficiency.
20,260 in U.S.Most new cases today
-14% Change in MSCI World Index of global stocks since Wuhan lockdown, Jan. 23
-1.034 Change in U.S. treasury bond yield since Wuhan lockdown, Jan. 23
-4.8% Global GDP Tracker (annualized), April