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Monetary Policy with State Contingent Interest Rates

  • Bernardino Adão
  • Isabel Horta Correia
  • Pedro Teles

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 isconducted with interest rate rules. We show that the appropriate interestrate 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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File URL: http://www.bportugal.pt/en-US/BdP%20Publications%20Research/WP200418.pdf
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Paper provided by Banco de Portugal, Economics and Research Department in its series Working Papers with number w200418.

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Date of creation: 2004
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Handle: RePEc:ptu:wpaper:w200418
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  1. McCallum, Bennett T., 1981. "Price level determinacy with an interest rate policy rule and rational expectations," Journal of Monetary Economics, Elsevier, vol. 8(3), pages 319-329.
  2. Lawrence J. Christiano & Massimo Rostagno, 2001. "Money Growth Monitoring and the Taylor Rule," NBER Working Papers 8539, National Bureau of Economic Research, Inc.
  3. BLOISE, Gaetano & DREZE, Jacques H. & POLEMARCHAKIS, Herakles M., . "Monetary equilibria over an infinite horizon," CORE Discussion Papers RP -1750, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  4. Buera, Francisco & Nicolini, Juan Pablo, 2004. "Optimal maturity of government debt without state contingent bonds," Journal of Monetary Economics, Elsevier, vol. 51(3), pages 531-554, April.
  5. Bernardino Adão & Isabel Horta Correia & Pedro Teles, 2001. "Gaps and Triangles," Working Papers w200102, Banco de Portugal, Economics and Research Department.
  6. DREZE, Jacques H. & POLEMARCHAKIS, Heracles, . "Monetary equilibria," CORE Discussion Papers RP -1525, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  7. Carlstrom, Charles T. & Fuerst, Timothy S., 2001. "Timing and real indeterminacy in monetary models," Journal of Monetary Economics, Elsevier, vol. 47(2), pages 285-298, April.
  8. George-Marios Angeletos, 2002. "Fiscal Policy With Noncontingent Debt And The Optimal Maturity Structure," The Quarterly Journal of Economics, MIT Press, vol. 117(3), pages 1105-1131, August.
  9. Sargent, Thomas J & Wallace, Neil, 1975. ""Rational" Expectations, the Optimal Monetary Instrument, and the Optimal Money Supply Rule," Journal of Political Economy, University of Chicago Press, vol. 83(2), pages 241-54, April.
  10. Tomoyuki Nakajima & Herakles Polemarchakis, 2005. "Money and Prices Under Uncertainty," Review of Economic Studies, Oxford University Press, vol. 72(1), pages 223-246.
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