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Optimal Monetary Policy with Credit Augmented Liquidity Cycles

  • Ester Faia

    (University of Rome at Tor Vergata)

The optimal response of monetary policy to financial instability is a long standing question whose policy relevance is now emphasized by the increase in available liquidity and in firms’ financial exposure. Bernanke, Gertler and Gilchrist (1998) build a model in which credit frictions occur on the demand for capital investment and induce demand driven fluctuations which exacerbate shock transmission. In this context the policy maker does not face any trade-off as output stabilization is achieved through inflation targeting. I build a sticky price DSGE model in which the demand for working capital is affected both by a cost channel and an external finance premium. In this context the policy instrument affects the cost of collateralizable loans which in turn affects firms’ marginal cost and inflation dynamics (supply side driven fluctuations). The optimal monetary policy design is based upon both constrained and global Ramsey policies. Results show that: a) the optimal inflation level lies between zero and the one prescribed by the Friedman rule, b) the optimal dynamic path features deviations from price stability, c) the optimal rule features asset price targeting.

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Paper provided by Society for Economic Dynamics in its series 2008 Meeting Papers with number 414.

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Date of creation: 2008
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Handle: RePEc:red:sed008:414
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Society for Economic Dynamics Marina Azzimonti Department of Economics Stonybrook University 10 Nicolls Road Stonybrook NY 11790 USA

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  1. Stephanie Schmitt-Grohe & Martin Uribe, 2002. "Solving Dynamic General Equilibrium Models Using a Second-Order Approximation to the Policy Function," NBER Technical Working Papers 0282, National Bureau of Economic Research, Inc.
  2. Bernardino Adão & Isabel Correia & Pedro Teles, 2003. "Gaps and Triangles," Review of Economic Studies, Oxford University Press, vol. 70(4), pages 699-713.
  3. V. V. Chari & Lawrence J. Christiano & Patrick J. Kehoe, 1991. "Optimal fiscal and monetary policy: some recent results," Staff Report 147, Federal Reserve Bank of Minneapolis.
  4. Kydland, Finn E. & Prescott, Edward C., 1980. "Dynamic optimal taxation, rational expectations and optimal control," Journal of Economic Dynamics and Control, Elsevier, vol. 2(1), pages 79-91, May.
  5. Lucas, Robert Jr. & Stokey, Nancy L., 1983. "Optimal fiscal and monetary policy in an economy without capital," Journal of Monetary Economics, Elsevier, vol. 12(1), pages 55-93.
  6. Tommaso Monacelli & Ester Faia, 2005. "Optimal Interest Rate Rules, Asset Prices and Credit Frictions," Computing in Economics and Finance 2005 452, Society for Computational Economics.
  7. Bernardino Adao, 2000. "Gaps and Triangles," Econometric Society World Congress 2000 Contributed Papers 1904, Econometric Society.
  8. Carlstrom, Charles T & Fuerst, Timothy S, 1997. "Agency Costs, Net Worth, and Business Fluctuations: A Computable General Equilibrium Analysis," American Economic Review, American Economic Association, vol. 87(5), pages 893-910, December.
  9. Stephanie Schmitt-Grohe & Martin Uribe, 2004. "Optimal Operational Monetary Policy in the Christiano-Eichenbaum-Evans Model of the U.S. Business Cycle," NBER Working Papers 10724, National Bureau of Economic Research, Inc.
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