Staff research

After a period with the interest rate at the effective lower bound, temporarily overshooting inflation may offer important economic benefits. This may be especially true for vulnerable segments of the population, such as workers with low attachment to the labour force and the long-term unemployed.

In light of the financial crisis and its aftermath, several economists have argued that inflation-targeting central banks should reconsider the level of their inflation targets. While the appropriate level for the inflation target remains an open question, it’s important to note that any transition to a new target would entail certain costs.

What path should policy-makers select for the nominal rate when faced with a liquidity trap during which the effective lower bound binds?

Conventional models imply that central banks aiming to raise inflation should lower nominal rates and thus stimulate aggregate demand. However, several economists have recently challenged this conventional wisdom in favour of an alternative “neo-Fisherian’’ view under which higher nominal rates might in fact lead to higher inflation.