How far to go – and to remain – in the direction of highly expansionary monetary policy hinges on the balance of marginal benefits and costs of additional monetary easing and its expected evolution over time. This paper sketches a framework for assessing this balance and applies it to four...

In the wake of the Great Recession, a massive monetary policy stimulus was provided in the main OECD economies. It helped to stabilise financial markets and avoid deflation. Nonetheless, GDP growth has been sluggish and in some countries lower than expected given the measures taken, and...