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Title:Monetary discretion, pricing complementarity and dynamic multiple equilibria PDF Logo
Authors:King, Robert G.
Wolman, Alexander L.
Issue Date:2004
Series/Report no.:CFS Working Paper 2004/22
Abstract:In a plain-vanilla New Keynesian model with two-period staggered price-setting, discretionary monetary policy leads to multiple equilibria. Complementarity between the pricing decisions of forward-looking firms underlies the multiplicity, which is intrinsically dynamic in nature. At each point in time, the discretionary monetary authority optimally accommodates the level of predetermined prices when setting the money supply because it is concerned solely about real activity. Hence, if other firms set a high price in the current period, an individual firm will optimally choose a high price because it knows that the monetary authority next period will accommodate with a high money supply. Under commitment, the mechanism generating complementarity is absent: the monetary authority commits not to respond to future predetermined prices. Multiple equilibria also arise in other similar contexts where (i) a policymaker cannot commit, and (ii) forward-looking agents determine a state variable to which future policy responds.
Subjects:Monetary Policy
Discretion
Time-Consistency
Multiple Equilibria
Complementarity
JEL:E5
E61
D78
Persistent Identifier of the first edition:urn:nbn:de:hebis:30-10732
Document Type:Working Paper
Appears in Collections:CFS Working Paper Series, Universität Frankfurt a. M.

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