Monetary developments of recent decades began with much promise with inflation targeting by independent central banks; the financial crisis of 2007 ushered in a period of great monetary instability. There are lessons for a return to more stability. Central banks need to stabilize money supply...

The dynamic properties of the The New Keynesian Phillips curve (NPC) is analysed within the framework of a small system of linear di.erence equations.We evaluate the empirical results of existing studies which uses ‘Euroland’ and US data. The debate has been centered around the...

This paper explores the implications of time varying volatility for optimal monetary policy and the measurement of welfare costs. We show how macro-economic models with linear and quadratic state dependence in their variance structure can be used for the analysis of optimal policy within the...