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Financial Intermediation and Monetary Policy in a Small Open Economy

  • Juan David Prada Sarmiento


This paper analyses the role of a costly financial system in the transmission of monetary policy. The new-keynesian model for a small open economy is extended with a simple financial system based in Hamann and Oviedo (2006). The presence of the financial intermediation naturally allows the introduction of standard policy instruments: the repo interest rate and the compulsory requirement of reserves. The model is calibrated to match key steady-state ratios of Colombia and is used to evaluate the alternative policy instruments. The financial system plays an important role in the transmission mechanism of the monetary policy, and determines the final effects on aggregated demand and inflation rates of exogenous modifications of the policy instruments. The monetary policy conducted through the repo interest rate has the standard effects predicted by the new-keynesian framework. But changes in the compulsory reserve requirement rate may generate, under different scenarios, totally different reactions on economic activity, and little quantitative effects on inflation rates and aggregate demand. Therefore this last policy instrument appears to be uneffective and unreliable.

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Paper provided by Banco de la Republica de Colombia in its series Borradores de Economia with number 531.

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Handle: RePEc:bdr:borrec:531
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  1. Villar Gómez Leonardo & David M. Salamanca Rojas & Andrés Murcia Pabón, 2005. "Crédito, represión financiera y flujos de capitales en Colombia: 1974-2003," REVISTA DESARROLLO Y SOCIEDAD, UNIVERSIDAD DE LOS ANDES-CEDE, May.
  2. Martha R. López & Juan D. Prada & Norberto Rodríguez Niño, 2008. "Financial Accelerator Mechanism in a Small Open Economy," BORRADORES DE ECONOMIA 004992, BANCO DE LA REPÚBLICA.
  3. Romer, David, 1985. "Financial intermediation, reserve requirements, and inside money: A general equilibrium analysis," Journal of Monetary Economics, Elsevier, vol. 16(2), pages 175-194, September.
  4. Uribe, Martin & Yue, Vivian Z., 2006. "Country spreads and emerging countries: Who drives whom?," Journal of International Economics, Elsevier, vol. 69(1), pages 6-36, June.
  5. Brock, Philip L, 1989. "Reserve Requirements and the Inflation Tax," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 21(1), pages 106-21, February.
  6. Andrés González & Lavan Mahadeva & Juan D. Prada & Diego Rodríguez, . "Policy Analysis Tool Applied to Colombian Needs: PATACON Model Description," Borradores de Economia 656, Banco de la Republica de Colombia.
  7. Calvo, Guillermo A., 1983. "Staggered prices in a utility-maximizing framework," Journal of Monetary Economics, Elsevier, vol. 12(3), pages 383-398, September.
  8. Andrés Felipe Arias, 2000. "The Colombian Banking Crisis: Macroeconomic Consequences And What To Expect," BORRADORES DE ECONOMIA 003573, BANCO DE LA REPÚBLICA.
  9. Ben S. Bernanke, 1983. "Non-Monetary Effects of the Financial Crisis in the Propagation of the Great Depression," NBER Working Papers 1054, National Bureau of Economic Research, Inc.
  10. Andrea Gerali & Stefano Neri & Luca Sessa & Federico M. Signoretti, 2010. "Credit and Banking in a DSGE Model of the Euro Area," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 42(s1), pages 107-141, 09.
  11. Edwards, Sebastian & Vegh, Carlos A., 1997. "Banks and macroeconomic disturbances under predetermined exchange rates," Journal of Monetary Economics, Elsevier, vol. 40(2), pages 239-278, October.
  12. Oviedo, P. Marcelo, 2005. "World Interest Rate, Business Cycles, and Financial Intermediation in Small Open Economies," Staff General Research Papers 12360, Iowa State University, Department of Economics.
  13. Mendoza, Enrique G, 1991. "Real Business Cycles in a Small Open Economy," American Economic Review, American Economic Association, vol. 81(4), pages 797-818, September.
  14. Mark Gertler & Simon Gilchrist & Fabio M. Natalucci, 2007. "External Constraints on Monetary Policy and the Financial Accelerator," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 39(2-3), pages 295-330, 03.
  15. Schmitt-Grohé, Stephanie & Uribe, Martín, 2002. "Closing Small Open Economy Models," CEPR Discussion Papers 3096, C.E.P.R. Discussion Papers.
  16. Andrew Levin & Christopher J. Erceg & Dale W. Henderson, 1999. "Optimal Monetary Policy with Staggered Wage and Price Contracts," Computing in Economics and Finance 1999 1151, Society for Computational Economics.
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