Working with micro-founded loss functions to derive and analyse optimal policy ensures consistency with the model used and overcomes the misleading prescriptions that result from using exogenous ad hoc loss functions. However, when allowance is made for the fact that different theories of...

Optimal monetary policy under discretion is analysed in a New Keynesian model with rule of thumb pricing. The paper finds that social welfare increases if the policy maker does not discount the future. The welfare improvement rises with the extent of intrinsic inflation persistence.

A new spatial decomposition of total factor productivity growth into direct (own) and indirect (spillover) components is set out. We then apply the decomposition in the context of a spatial autoregressive production frontier analysis of 40 European countries over the period 1995–2008.