The Zero Lower Bound (ZLB) on policy rates is one of the key monetary policy issues du jour. In this paper we investigate the problem of modelling and estimating the ZLB in a simple New Keynesian model with regime switches. The key features of the model include switches in the time preference...

The lower bound on interest rates has restricted the impact of conventional monetary policies over recent years and could continue to do so in the near future, with the decline in natural real rates not predicted to reverse any time soon. A binding lower bound on interest rates has consequences...

In this chapter, we discuss a number of challenges for structural macroeconomic models in the light of the Great Recession and its aftermath. It shows that a benchmark DSGE model that shares many features with models currently used by central banks and large international institutions has...

Fiscal multipliers decrease nonlinearly as the private sector anticipates a higher likelihood of NIRP in the future. While the on-impact fiscal multiplier at the ZLB is above the unity without any expectation about NIRP in the future, it falls below 1 when the agents expect the economy to switch...