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Asset prices, collateral and unconventional monetary policy in a DSGE model

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  • Hilberg, Björn
  • Hollmayr, Josef
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    Abstract

    In this paper we set up a New-Keynesian model that features an interbank market. The introduction of an interbank market is important to analyze liquidity problems among heterogenous agents within the financial sector. First, because this allows for a situation where increased liquidity supply by the central bank is only partially passed on to the interbank market. Second, this framework allows us to analyze one additional policy measure besides the common interest rate policy undertaken by central banks to alleviate the liquidity shortage on the interbank market. Namely haircuts on eligible assets in repurchase agreements (“Repos”). By varying haircuts applied to securities that serve as collateral in repurchase agreements the stress on the interbank market can be mitigated by bringing down the interest rate charged among banks. Furthermore an exogenous bubble process is modeled which enables us to examine the effects of a deviation of the market price of capital from its fundamental price. This leads to a discussion whether central banks should ”lean against the wind”, i.e. react to deviations of asset prices in the setting of their policy instrument. Finally, this paper tries to shed some light on the “exit strategy” that a central bank should follow after the asset price bubble bursted and the interbank market begins to work properly again. JEL Classification: E4, E5, E61, G21

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    Bibliographic Info

    Paper provided by European Central Bank in its series Working Paper Series with number 1373.

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    Date of creation: Aug 2011
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    Handle: RePEc:ecb:ecbwps:20111373

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    Related research

    Keywords: collateral; DSGE; exit strategy; haircuts; monetary policy;

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    References

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    1. Xavier Freixas & José Jorge, 2007. "The role of interbank markets in monetary policy: A model with rationing," Economics Working Papers 1027, Department of Economics and Business, Universitat Pompeu Fabra, revised Apr 2008.
    2. Nicolae B. Garleanu & Lasse Heje Pedersen & Adam B. Ashcraft, 2010. "Two Monetary Tools: Interest-Rates and Haircuts," 2010 Meeting Papers 1102, Society for Economic Dynamics.
    3. Roland Winkler & Ignazio Angeloni, 2011. "Exit Strategies," 2011 Meeting Papers 241, Society for Economic Dynamics.
    4. Vasco Cúrdia & Michael Woodford, 2010. "The central-bank balance sheet as an instrument of monetary policy," Staff Reports 463, Federal Reserve Bank of New York.
    5. Tobias Adrian & Hyun Song Shin, 2009. "Money, Liquidity, and Monetary Policy," American Economic Review, American Economic Association, vol. 99(2), pages 600-605, May.
    6. Christiano, Lawrence & Motto, Roberto & Rostagno, Massimo, 2007. "Shocks, structures or monetary policies? The euro area and US after 2001," Working Paper Series 0774, European Central Bank.
    7. Gertler, Mark & Karadi, Peter, 2011. "A model of unconventional monetary policy," Journal of Monetary Economics, Elsevier, vol. 58(1), pages 17-34, January.
    8. Stephen G. Cecchetti & Hans Genberg & Sushil Wadhwani, 2002. "Asset Prices in a Flexible Inflation Targeting Framework," NBER Working Papers 8970, National Bureau of Economic Research, Inc.
    9. Matteo Iacoviello, 2005. "House Prices, Borrowing Constraints, and Monetary Policy in the Business Cycle," American Economic Review, American Economic Association, vol. 95(3), pages 739-764, June.
    10. Andreas Schabert, 2010. "Optimal Central Bank Lending," Tinbergen Institute Discussion Papers 10-057/2, Tinbergen Institute.
    11. Frank Smets & Raf Wouters, 2002. "An estimated dynamic stochastic general equilibrium model of the euro area," Working Paper Research 35, National Bank of Belgium.
    12. Ian Christensen & Ali Dib, 2008. "The Financial Accelerator in an Estimated New Keynesian Model," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 11(1), pages 155-178, January.
    13. Bernanke, Ben S. & Gertler, Mark & Gilchrist, Simon, 1999. "The financial accelerator in a quantitative business cycle framework," Handbook of Macroeconomics, in: J. B. Taylor & M. Woodford (ed.), Handbook of Macroeconomics, edition 1, volume 1, chapter 21, pages 1341-1393 Elsevier.
    14. Calvo, Guillermo A., 1983. "Staggered prices in a utility-maximizing framework," Journal of Monetary Economics, Elsevier, vol. 12(3), pages 383-398, September.
    15. Borgy, V. & Laubach, T. & Mésonnier, J-S. & Renne, J-P., 2011. "Fiscal Sustainability, Default Risk and Euro Area Sovereign Bond Spreads Markets," Working papers 350, Banque de France.
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    Cited by:
    1. Szabolcs Deák & Lionel Fontagné & Marco Maffezzoli & Massimiliano Marcellino, 2012. "The banking and distribution sectors in a small open economy DSGE Model," RSCAS Working Papers 2012/53, European University Institute.

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