The inertia found in econometric estimates of interest rate rules is a continuing puzzle. Many reasons for it have been offered, though unsatisfactorily, and the issue remains open. In the empirical literature on interest rate rules, inertia in setting interest rates is typically modelled by...

In this Paper we argue that the objectives given to the European Central Bank in the Maastricht Treaty are not well represented by the widely used weighted sum of squared deviations of inflation and output from target (plus possibly terms in squared changes in interest rates to pick up interest...

It has been argued that delegation of monetary policy to an independent central bank, which acts as an agent for the government, does not mitigate the problem of time-inconsistency, but merely relocates it. We argue here that this is not so, and that delegation enables a wider class of economies...

How and why do financial conditions matter for real outcomes? The ‘workhorse model of money and liquidity’ of Kiyotaki and Moore (2008) shows how--with full employment maintained by flexible prices--shifting credit constraints can affect investment and future aggregate supply. We show that,...

This paper uses a structural time-series analysis to analyse the properties of ex-ante real interest rates of the five major OECD economies in relation to temporary and permanent shocks to real output. Following Blanchard and Quah (1989) we refer to these innovations as ‘nominal’ and...

We examine several continuous-time term-structure models, in which the short rate is subject to discrete shifts. Our empirical analysis suggests that inquiring which parameters of the short-term interest rate equation are allowed to switch is crucial, as failing to do so may result in switching...

This paper extends the work of Barro and Gordon (1983) to general linear models with rational expectations. We examine the question whether the optimal policy rule, i.e. the one that a government which could pre-commit itself would use, can be sustained as a consistent rule in the sense defined...

In several recent papers macroeconomic policy has been modelled in the context of a game of incomplete information. A central result of the work by Backus and Driffill and by Barro is that the uncertainty may provide an incentive for the government to maintain a socially efficient policy of zero...

Dynamic inconsistency provides a theoretical basis for discussions of policy credibility: when the government cannot commit its future policies, the incentive to deviate from the 'optimal' plan renders it incredible. We derive the best policy in the absence of precommitment as the feedback Nash...

We review theoretical and empirical analyses of the costs of inflation. Part 2 of the paper examines microeconomic models in which inflation is perfectly anticipated, and viewed as the only distortion in the economy or as one of many distortionary taxes, which may or may not be chosen optimally....