This paper uses a two-country, monetary general equilibrium model with imperfect competition to study the optimal rate of inflation in an open economy. In contrast with the closed economy literature, when policy is set non-cooperatively in the open economy, the optimality of the Friedman rule is not a general result. Monetary authorities face an incentive to use the inflation tax to gain a "beggar-thy-neighbor" advantage over the terms of trade. Strategic use of the inflation tax, however, results in coordination failure. International monetary cooperation helps to mitigate this coordination failure and, as a result, can lead to more efficient equilibria. Monetary union ensures the maximum gain from cooperation by restoring the optimality of the global Friedman rule, placing the world economy at the Pareto frontier.
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Aubhik Khan & Robert G. King & Alexander L. Wolman, 2000.
"Optimal monetary policy,"
Working Paper
00-10, Federal Reserve Bank of Richmond.
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Aubhik Khan & Robert King & Alexander L. Wolman, 2002.
"Optimal monetary policy,"
Working Papers
02-19, Federal Reserve Bank of Philadelphia.
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Aubhik Khan & Robert G. King & Alexander L. Wolman, 2001.
"Optimal monetary policy,"
Working Papers
01-5, Federal Reserve Bank of Philadelphia.
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Aubhik Khan & Robert G. King & Alexander L. Wolman, 2002.
"Optimal Monetary Policy,"
NBER Working Papers
9402, National Bureau of Economic Research, Inc.
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Aubhik Khan & Robert G. King & Alexander L. Wolman, 2003.
"Optimal Monetary Policy,"
Review of Economic Studies,
Blackwell Publishing, vol. 70(4), pages 825-860, October.
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Russell Cooper & Hubert Kempf, 2003.
"Commitment and the Adoption of a Common Currency,"
International Economic Review,
Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 44(1), pages 119-142, February.
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Isabel Correia & Pedro Teles, 1999.
"The Optimal Inflation Tax,"
Review of Economic Dynamics,
Elsevier for the Society for Economic Dynamics, vol. 2(2), pages 325-346, April.
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