Even if governments could create inflation, they may not want to
IN THE short run inflation is an economic phenomenon. In the long run it is a political one. This week The Economist asked a group of leading economists whether they reckoned inflation or deflation was the greater threat; this was our inaugural question in “Economics by invitation”, an online forum of more than 50 eminent economists. The rough consensus was that in the near term, as Western economies struggle to recover, the bigger worry there is deflation. But as the time horizon lengthened, more experts cited inflation, because it seems the most plausible exit strategy for governments trying to deal with crushing debts. “Deflation is not a lasting threat,” wrote Arminio Fraga, a former president of Brazil’s central bank. “The more interesting question is whether they can manage to keep inflation down over time under the regime of fiscal irresponsibility now prevailing almost everywhere.”
Creating more inflation is harder than it sounds—even if rich-world governments were tempted to try, as a solution to their fiscal problems. It requires aggregate demand to return to, and exceed, potential output. Measuring the output gap (the shortfall of actual demand compared with potential GDP) is notoriously tricky. The OECD reckons for its members it will be about 4% this year, down from about 5% last year. It has revised that estimate down since November in recognition of better-than-expected growth, especially in America. Still, the revised gap is larger than at any time since at least 1970. America’s gap was larger in 1982, but inflation today is much lower. Indeed, the OECD estimates that in each of the G7 countries, inflation will be less than 2% through to the end of next year. The process could be hurried up if inflation expectations rise. But with underlying inflation below central banks’ targets in many countries, and dropping, expectations could move down instead. ...