A New Keynesian Model with Endogenous Frictions

Guido Giese and Helmut Wagner

No a520, Discussion Paper Series from Institute of Economic Research, Hitotsubashi University

Abstract: We develop a New Keynesian model that incorporates rigidities in the ability of households and firms to adjust their utility-efficient / profit-efficient resource allocation in response to shocks. These rigidities reflect the fact that households and firms enter into commitments for several periods of time regarding the allocation of resources limiting their ability to flexibly respond to unforeseen shocks. We show that these rigidities can adversely impact the productivity of firms and households' utility and result in the appearance of higher statistical moments in the demand and supply curves which are not exogenously constant but system-endogenous. As a result, we will derive the appearance of an inflation bias which exists even in the case of an efficient natural output and which cannot be removed by a rule-based monetary policy. Further, we show that monetary policy faces an additional trade-off in managing the friction losses due to inflation uncertainty and output uncertainty.

JEL-codes: D81 E10 E52 (search for similar items in EconPapers)
Pages: 33 pages
Date: 2009-06
Note: April 2009
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Persistent link: https://EconPapers.repec.org/RePEc:hit:hituec:a520

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