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Optimal Monetary Responses to Asset Price Levels and Fluctuations: The Ramsey Problem and A Primal Approach

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  • Diogo Guillen

    (Princeton University)

  • Wei Cui

    (Princeton University)

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Abstract

Should monetary policy react to asset prices levels and changes? In answering this question, we provide a tractable monetary Ramsey approach for a heterogeneous agents model with conventional policy (interest rate or money growth target) and unconventional policy (purchase of private illiquid assets) as instruments, in which heterogeneous agents' interaction is summarized in one implementability condition. We show that entrepreneurs hold too much liquid asset in a model with equity issuance and resale (liquidity) constraints. In the steady state, optimal policy involves paying interest on liquid assets or reducing the money supply available, leading to an equivalent increase of .40% in permanent consumption compared to the economy with no policy. In responding to liquidity shocks, the paths of macroeconomic variables under no policy and optimal policy are sharply different and suggest the need for policy on changing the rate of return on liquid assets. Finally, we prove that the unconventional policy dominates the conventional counterpart, but, quantitatively, the welfare difference of them is negligible.

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Paper provided by Society for Economic Dynamics in its series 2012 Meeting Papers with number 1106.

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Date of creation: 2012
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Handle: RePEc:red:sed012:1106

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  1. Javier Bianchi, 2010. "Overborrowing and Systemic Externalities in the Business Cycle," 2010 Meeting Papers 96, Society for Economic Dynamics.
  2. Russell Cooper & John Haltiwanger & Laura Power, 1995. "Machine Replacement and the Business Cycle: Lumps and Bumps," Papers 0062, Boston University - Industry Studies Programme.
  3. Markus K. Brunnermeier & Thomas M. Eisenbach & Yuliy Sannikov, 2012. "Macroeconomics with Financial Frictions: A Survey," Levine's Working Paper Archive 786969000000000384, David K. Levine.
  4. Marco Del Negro & Gauti Eggertsson & Andrea Ferrero & Nobuhiro Kiyotaki, 2011. "The great escape? A quantitative evaluation of the Fed’s liquidity facilities," Staff Reports 520, Federal Reserve Bank of New York.
  5. Mankiw, N. Gregory & Zeldes, Stephen P., 1991. "The consumption of stockholders and nonstockholders," Journal of Financial Economics, Elsevier, vol. 29(1), pages 97-112, March.
  6. S. Rao Aiyagari, 1993. "Uninsured idiosyncratic risk and aggregate saving," Working Papers 502, Federal Reserve Bank of Minneapolis.
  7. Gertler, Mark & Karadi, Peter, 2011. "A model of unconventional monetary policy," Journal of Monetary Economics, Elsevier, vol. 58(1), pages 17-34, January.
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