This thesis investigates the consequences of model uncertainty and persistence in consumption habits and price-setting behaviour in a New Keynesian model.As the decision of a central bank is made in an uncertain environment, the analysis of uncertainty is essential in monetary policy models. In...

This is a review article of A 'Second Edition' of the General Theory Vols 1 and 2 edited by G.C. Harcourt and P.A. Riach (London: Routledge, 1997).