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Optimal Monetary Policy under Asset Market Segmentation

  • Rajesh Singh
  • Amartya Lahiri
  • Carlos Vegh

This paper studies optimal monetary policy in a small open economy under flexible prices. The paper’s key innovation is to analyze this question in the context of environments where only a fraction of agents participate in asset market transactions (i.e., asset markets are segmented). In this environment, we first show that there exist state contingent rules (based either on the rate of money growth or the devaluation rate) that can implement the first-best equilibrium. Such rules, however, would require the monetary authority to respond to contemporaneous shocks and would thus be difficult to implement. We then proceed to analyze optimal monetary policy rules within the class of non-state contingent rules. Our main result is that amongst non-state contingent rules, policies targeting monetary aggregates (which allow for nominal exchange rate flexibility) welfare-dominate rules that target the exchange rate. In particular, we find that a fixed exchange rate is never optimal. Our analysis would thus tend to support monetary policy arrangements that allow for nominal exchange rate flexibility

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Paper provided by Econometric Society in its series Econometric Society 2004 North American Summer Meetings with number 643.

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Date of creation: 11 Aug 2004
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Handle: RePEc:ecm:nasm04:643
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  1. Schmitt-Grohe, Stephanie & Uribe, Martin, 2001. "Stabilization Policy and the Costs of Dollarization," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 33(2), pages 482-509, May.
  2. Reinhart, Carmen & Calvo, Guillermo, 2002. "Fear of floating," MPRA Paper 14000, University Library of Munich, Germany.
  3. Rotemberg, Julio J, 1984. "A Monetary Equilibrium Model with Transactions Costs," Journal of Political Economy, University of Chicago Press, vol. 92(1), pages 40-58, February.
  4. Luis Felipe Cespedes & Roberto Chang & Andres Velasco, 2000. "Balance Sheets and Exchange Rate Policy," NBER Working Papers 7840, National Bureau of Economic Research, Inc.
  5. Fernando Alvarez & Robert E. Lucas & Warren E. Weber, 2001. "Interest Rates and Inflation," American Economic Review, American Economic Association, vol. 91(2), pages 219-225, May.
  6. Alessandro Rebucci, 2004. "Monetary Rules for Emerging Market Economies," Econometric Society 2004 North American Summer Meetings 644, Econometric Society.
  7. Ernesto Talvi & Carlos A. Vegh, 2000. "Tax Base Variability and Procyclical Fiscal Policy," NBER Working Papers 7499, National Bureau of Economic Research, Inc.
  8. Chatterjee, Satyajit & Corbae, Dean, 1992. "Endogenous Market Participation and the General Equilibrium Value of Money," Journal of Political Economy, University of Chicago Press, vol. 100(3), pages 615-46, June.
  9. Alvarez, Fernando & Atkeson, Andrew, 1997. "Money and exchange rates in the Grossman-Weiss-Rotemberg model," Journal of Monetary Economics, Elsevier, vol. 40(3), pages 619-640, December.
  10. Fernando Alvarez & Andrew Atkeson & Patrick J. Kehoe, 2002. "Money, Interest Rates, and Exchange Rates with Endogenously Segmented Markets," Journal of Political Economy, University of Chicago Press, vol. 110(1), pages 73-112, February.
  11. Amartya Lahiri & Rajesh Singh & Carlos A. Vegh, 2007. "Segmented Asset Markets and Optimal Exchange Rate Regimes," NBER Working Papers 13154, National Bureau of Economic Research, Inc.
  12. Casey B. Mulligan & Xavier Sala-i-Martin, 2000. "Extensive Margins and the Demand for Money at Low Interest Rates," Journal of Political Economy, University of Chicago Press, vol. 108(5), pages 961-991, October.
  13. Sven Steinmo (ed.), 1998. "Tax Policy," Books, Edward Elgar Publishing, number 1156.
  14. Richard Clarida & Jordi Gali & Mark Gertler, 2001. "Optimal Monetary Policy in Closed versus Open Economies: An Integrated Approach," NBER Working Papers 8604, National Bureau of Economic Research, Inc.
  15. Grossman, Sanford & Weiss, Laurence, 1983. "A Transactions-Based Model of the Monetary Transmission Mechanism," American Economic Review, American Economic Association, vol. 73(5), pages 871-80, December.
  16. Michael B. Devereux & Charles Engel, 1998. "Fixed vs. Floating Exchange Rates: How Price Setting Affects the Optimal Choice of Exchange-Rate Regime," NBER Working Papers 6867, National Bureau of Economic Research, Inc.
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