What instruments of monetary policy must be used in order to implement a unique equilibrium? This paper revisits the issues addressed by Sargent and Wallace (1975) on the multiplicity of equilibria when policy is conducted with interest rate rules. We show that the appropriate interest rate instruments under uncertainty are state- contingent interest rates, i.e. the nominal returns on state-contingent nominal assets. A policy that pegs state-contingent nominal interest rates, and sets the initial money supply, implements a unique equilibrium. These results hold whether prices are flexible or set in advance.
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Paper provided by Federal Reserve Bank of Chicago in its series Working Paper Series with number
WP-04-26.
References listed on IDEAS Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
DREZE, Jacques & POLEMARCHAKIS, Heracles, 2000.
"Monetary equilibria,"
CORE Discussion Papers
2000044, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
[Downloadable!]
Bernardino Adão & Isabel Correia & Pedro Teles, 2001.
"Gaps and triangles,"
Working Paper Series
WP-01-13, Federal Reserve Bank of Chicago.
[Downloadable!]
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