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Predetermined Interest Rates in a Analytical RBC model

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  • Fève, Patrick
  • Moura, Alban
  • Pierrard, Olivier

Abstract

We solve a version of the analytical Real Business Cycle (RBC) model with a predetermined rate of return on household saving. The solution differs from that of the benchmark RBC model along two dimensions: (i) Policy functions depend on the variance of the technology shock. (ii) There is a suboptimal pattern of excess saving. We discuss the economic intuition underlying these properties. We also demonstrate that unconditional welfare can be higher in the suboptimal model with predetermined interest rates, providing a clear illustration of the pitfall with unconditional welfare comparisons.

Suggested Citation

  • Fève, Patrick & Moura, Alban & Pierrard, Olivier, 2018. "Predetermined Interest Rates in a Analytical RBC model," TSE Working Papers 18-954, Toulouse School of Economics (TSE).
  • Handle: RePEc:tse:wpaper:32949
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    References listed on IDEAS

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    1. 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.
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    3. Bennett T. McCallum, 1988. "Real Business Cycle Models," NBER Working Papers 2480, National Bureau of Economic Research, Inc.
    4. Lester, Robert & Pries, Michael & Sims, Eric, 2014. "Volatility and welfare," Journal of Economic Dynamics and Control, Elsevier, vol. 38(C), pages 17-36.
    5. Jonathan Hoddenbagh & Mikhail Dmitriev, 2017. "The Financial Accelerator and the Optimal State-Dependent Contract," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 24, pages 43-65, March.
    6. Matteo Iacoviello, 2015. "Financial Business Cycles," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 18(1), pages 140-164, January.
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    8. 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.
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    12. 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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    More about this item

    Keywords

    RBC model; predetermined interest rates; over-saving; conditional and unconditional welfare;

    JEL classification:

    • E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • E43 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Interest Rates: Determination, Term Structure, and Effects

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