Staff research

Since 2012, business investment growth has slowed considerably in advanced economies, averaging a little less than 2 per cent versus the 4 per cent growth rates experienced in the period leading up to crisis. Several recent studies have attributed a large part of the weakness in business investment to cyclical factors, including soft aggregate demand, and, to a lesser degree, heightened uncertainty and tighter financial conditions.

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.