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Optimal Interest Rate Policy in a Small Open Economy

  • Eric Parrado
  • Andres Velasco

Using an optimizing model we derive the optimal monetary and exchange rate policy for a small stochastic open economy with imperfect competition and short run price rigidity. The optimal monetary policy has an exact closed-form solution and is obtained using the utility function of the representative home agent as welfare criterion. The optimal policy depends on the source of stochastic disturbances affecting the economy, much as in the literature pioneered by Poole (1970). Optimal monetary policy reacts to domestic and foreign disturbances. If the intertemporal elasticity of substitution in consumption is less than one, as is likely to be the case empirically, the optimal exchange rate policy implies a dirty float: interest rate shocks from abroad are met partially by adjusting home interest rates, and partially by allowing the exchange rate to move. This optimal pattern may help rationalize the observed fear of floating.

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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 8721.

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Date of creation: Jan 2002
Date of revision:
Handle: RePEc:nbr:nberwo:8721
Note: IFM
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