With the Covid-19 pandemic intensifying, the US has just adopted a $2tn economic-rescue package (equal to 9.2% of 2019 GDP). The legislation follows unprecedented actions by the US Federal Reserve, which will 从事 in open-ended quantitative easing, and has introduced new mechanisms to backstop businesses and keep credit flowing.
Much of the US response will come in the form of “helicopter money,” an application of Modern Monetary Theory in which the central bank finances fiscal stimulus by purchasing government debt issued to finance tax cuts or public spending increases. The US economy is deteriorating at a spectacular rate, partly because of the direct health impact of the Covid-19 pandemic, but mostly as a result of social-distancing mandates that are preventing people from producing and consuming.
Given the circumstances, it is safe to assume that the Fed’s incremental asset-purchase programme will reach at least $2tn if that is what it takes to spare the federal government from having to access asset markets directly to fund its new initiatives. In January, before the coronavirus had become a recognised threat, the Congressional Budget Office 预料到的 that the US government would have an annual recurring federal deficit above $1tn for at least the next decade.
A few weeks ago, when the severity of the crisis started to become clear, some federal officials 警告 that US unemployment could rise to 20% in the absence of a strong fiscal-policy response. But even with the new legislation, job losses could continue to mount in the second and third quarters of this year. To be effective, the fiscal support must be targeted meticulously at households that have lost incomes and at companies (large and small) that have lost revenues as a result of the pandemic. It remains to be seen if the US response will include such targeting, or whether such targeting is even feasible in a timely and orderly fashion.
Meanwhile, the UK is also pursuing a vigorous experiment in MMT/helicopter money. For starters, the Bank of England is preparing to buy up £200bn ($238bn) worth of UK government bonds and sterling non-financial investment-grade corporate bonds — a monetary stimulus equal to just under 10% of 2019 GDP. And on the fiscal side, Rishi Sunak, the new Chancellor of the Exchequer, is unleashing an 雪崩 of deficit-increasing stimulus measures.
For the calendar year 2020, the British government is looking at a deficit of at least 7.5% of GDP, and perhaps as high as 10%. But even at the upper end, the deficit would still fall within the range covered by the BOE’s monetised debt purchases. In other words, despite the extraordinary size of the fiscal stimulus, the government still will not have to go to the markets to borrow.
Because the eurozone lacks a serious central facility with independent budgetary powers, the European Stability Mechanism is the obvious institution through which financially strong member states could provide politically transparent support for weaker members should the need arise. And yet, there does not appear to be any consensus within the eurozone on whether the ESM could be used in this way.
The remaining option, then, is for member states to increase their national fiscal-stimulus programs to, say, 7.3% of GDP, while the ECB acts as the monetary helicopter. This, however, would 从事 the ECB in quasi-fiscal actions involving cross-country redistributions of fiscal risk, requiring either a change in existing treaties or a collective willingness to ignore the obvious legitimacy issues raised by such operations.
Unlike in the US and the UK, where there is one central bank for one country, the ECB cannot so easily assume the role of fiscal agent for the government. Euro-system purchases of, say, Italian sovereign debt would shift sovereign risk to the national central banks of the financially stronger member states and, ultimately, to those countries’ taxpayers.
But even if that is the case, it would be criminally negligent to allow a design flaw in existing treaties to inhibit the appropriate use of helicopter money at a time of existential crisis. Italy must implement a fiscal stimulus worth at least 5% of GDP – most likely more – and some combination of the ECB and the ESM must enable it to do so.
Willem H Buiter, a former chief economist at Citigroup, is a visiting professor at Columbia University