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Title:Heterogenous information about the term structure of interest rates, least-squares learning and optimal interest rate rules PDF Logo
Authors:Eijffinger, Sylvester C. W.
Schaling, Eric
Tesfaselassie, Mewael F.
Issue Date:2004
Series/Report no.:CEPR Discussion Paper Series, Centre for Economic Policy Research (CEPR), London 4279
Abstract:In this Paper we incorporate the term structure of interest rates in a standard inflation forecast targeting framework. Learning about the transmission process of monetary policy is introduced by having heterogeneous agents - i.e. the central bank and private agents - who have different information sets about the future sequence of short-term interest rates. We analyse inflation forecast targeting in two environments. One in which the central bank has perfect knowledge, in the sense that it understands and observes the process by which private sector interest rate expectations are generated, and one in which the central bank has imperfect knowledge and has to learn the private sector forecasting rule for short-term interest rates. In the case of imperfect knowledge, the central bank has to learn about private sector interest rate expectations, as the latter affect the impact of monetary policy through the expectations theory of the term structure of interest rates. Here, following Evans and Honkapohja (2001), the learning scheme we investigate is that of least-squares learning (recursive OLS) using the Kalman filter. We find that optimal monetary policy under learning is a policy that separates estimation and control. Therefore, this model suggests that the practical relevance of the breakdown of the separation principle and the need for experimentation in policy may be limited.
JEL:C53
E43
E52
F33
Document Type:Working Paper
Appears in Collections:Publikationen von Forscherinnen und Forschern des IfW

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