Price dispersion

The Slippery Slope of a Higher Inflation Target

With inflation significantly above target in most advanced economies, there are renewed calls for central banks to raise their targets from 2% to 3% or 4%, in order to limit the prospective costs of disinflation. In this post, we review the benefits and costs of a higher inflation target.

Yet, regardless of the balance between the costs and benefits of raising the inflation target, our view is that central banks ought not be able to choose their inflation targets. The key problem with such discretion is the slippery slope. If households and firms come to expect that a central bank will opportunistically raise its inflation target to avoid the economic sacrifice associated with disinflation, inflation expectations will no longer be anchored at the target (whatever it is).

To limit the “inflation expectations ratchet”—avoiding perceptions of opportunistic central bank discretion— the Federal Reserve should follow an approach that it now employs regarding the possible introduction of a central bank digital currency: namely, the Fed should announce that it will not alter its inflation target without the explicit support of both the legislative and executive branches, ideally in the form of legislation….

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The case for a higher inflation target gets stronger

For several years, economists and policymakers have been debating the wisdom of raising the inflation target. Today, roughly two-thirds of global GDP is produced in countries that are either de jure or de facto inflation targeters (see our earlier post). In most advanced economies, the target is (close to) 2 percent. Is 2 percent enough?

Advocates of raising the target believe that central banks need greater headroom to use conventional interest rate policy in battling business cycle downturns. More specifically, the case for a higher target is based on a desire to reduce the frequency and duration of zero-policy-rate episodes, avoiding the now well-known problems with unconventional policies (including balance sheet expansions that may prove difficult to reverse) and the limited scope for reducing policy rates below zero.

We have been reticent to endorse a higher inflation target. In our view, the most important counterargument is the enormous investment that central banks have made in making the 2-percent inflation target credible. Yet, several lines of empirical research recently have combined to boost the case for raising the target….

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