As our special report this week sets out, the rich world in particular is ill-prepared to deal with even a mild recession. That is partly because the policy arsenal is still depleted from fighting the last downturn. In the past half-century, the Fed has typically cut interest rates by five or so percentage points in a downturn. Today it has less than half that room before it reaches zero; the euro zone and Japan have no room at all.
Policymakers have other options, of course. Central banks could use the now-familiar policy of quantitative easing (QE), the purchase of securities with newly created central-bank reserves. The efficacy of QE is debated, but if that does not work, they could try more radical, untested approaches, such as giving money directly to individuals. Governments can boost spending, too. Even countries with large debt burdens can benefit from fiscal stimulus during recessions.
The question is whether using these weapons is politically acceptable. Central banks will enter the next recession with balance-sheets that are already swollen by historical standards—the Fed’s is worth 20% of GDP. Opponents of QE say that it distorts markets and inflates asset bubbles, among other things. No matter that these views are largely misguided; fresh bouts of QE would attract even closer scrutiny than last time. The constraints are particularly tight in the euro zone, where the ECB is limited to buying 33% of any country’s public debt.
— The Economist (@TheEconomist) October 11, 2018