The dollar is in freefall! The global greenback is doomed! screamed recent headlines. Actually, such sensational headlines are “too sensational”, to echo that noted authority on currencies, Miss Prism, in Oscar Wilde’s The Importance of Being Earnest.
The dollar’s fall in July to a two-year low against the euro was the immediate impetus for these stories. In fact, the dollar’s recent slide is one in a series of readily explicable fluctuations. When the Covid-19 pandemic went global in March, the dollar strengthened on the back of safe-haven flows into US Treasuries, as it does at the start of every crisis. By May, the Federal Reserve, acting as global lender of last resort, had accommodated this mad scramble for dollars by pouring buckets of liquidity into financial markets and the greenback gave back its early gains.
The dollar’s subsequent depreciation reflects the changing prospects of the US and European economies. With the spread of Covid-19, the US outlook is deteriorating, so investors expect the Fed to keep interest rates low for longer. In the eurozone, the virus is under better control and data from purchasing managers’ surveys are surprising on the upside.
This improving outlook doesn’t mean that the European Central Bank will start raising its policy rate tomorrow. But it does incline investors to believe that it will start normalising interest rates earlier.
This relationship – you tell me the outlook for interest rates and I can tell you the change in the exchange rate – has a name, of course. As Miss Prism will remind you, it is called “interest parity”. This theory doesn’t work perfectly. But no theory of what determines the exchange rate does. When seeking to understand events, we shouldn’t make the perfect the enemy of the good.
Seeking to explain euro bullishness, some observers, point instead to the agreement by European leaders to issue €750bn ($884bn) of EU bonds. This is bullishness without the “ishness”. Seven hundred and fifty billion euros is less than 5% of the stock of US government debt held by the public. It is a drop in the bucket, in other words. And a drop does not a liquid market in safe assets make.
Even if this really is Europe’s “Hamiltonian moment”, ramping up EU issuance by a factor of 20 will take decades. That is how long Europe will need to create a benchmark asset with the liquidity of US Treasuries. And foreign-exchange markets trade on today’s news, not on something that may or may not happen decades from now.
Indeed, the most striking takeaway from recent experience is the dollar’s resiliency. Normally, investors hold a currency when the issuer’s policies are sound and stable. US policy has been risky and erratic, despite having a “stable genius” at the helm.
Banks and firms hold a currency when it is useful for invoicing and settling trade with the issuing country. But Donald Trump’s administration has done more than any in living memory to disrupt US trade. Governments, for their part, hold and use the currencies of their alliance partners. And, under Trump, the US today is no longer the reliable alliance partner it once was.