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Monetary Policy Rules in a Two-Country World

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  • Kollmann, Robert

Abstract

This paper computes welfare-maximizing Taylor-style interest rate rules, in a business cycle model of a two-country world. The model assumes staggered price setting, violations of the Law of One Price, due to pricing-to-market, and productivity shocks, as well as shocks to the uncovered interest rate parity (UIP) condition--these shocks can be interpreted as reflecting biased exchange rate forecasts by "noise traders". Optimized policy rules closely replicate the equilibrium under price flexibility. Monetary policy coordination (joint maximization of world welfare) yields very limited welfare gains, compared to the Nash outcome. UIP shocks have a non-negligible negative effect on welfare, especially when these shocks are highly persistent, and when trade linkages between the two countries are strong. The adoption of an exchange rate peg may thus be welfare improving, if the adoption of the peg reduces the variance of the UIP shocks. The model explains thus the propensity of very open economies to peg their exchange rate vis-à-vis their main trading partners.

Suggested Citation

  • Kollmann, Robert, 2002. "Monetary Policy Rules in a Two-Country World," MPRA Paper 70347, University Library of Munich, Germany.
    • Handle: RePEc:pra:mprapa:70347
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    More about this item

    Keywords

    Monetary Policy rules; Open economy; Business cycles;
    All these keywords.

    JEL classification:

    • E3 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles
    • E4 - Macroeconomics and Monetary Economics - - Money and Interest Rates
    • F3 - International Economics - - International Finance
    • F4 - International Economics - - Macroeconomic Aspects of International Trade and Finance
    • F6 - International Economics - - Economic Impacts of Globalization

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