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On model ambiguity and money neutrality

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  • Lioui, Abraham
  • Poncet, Patrice

Abstract

We solve for the equilibrium of a stochastic neo-classical continuous time model without and with money under model ambiguity. We show that: (i) the correction for ambiguity stemming from the money supply is nil at equilibrium; (ii) money is neutral with respect to the stock market equilibrium (the equity risk premium); (iii) money is not neutral with respect to consumption and capital accumulation, and its effect may be quantitatively substantial; (iv) the preference for model robustness affects all the real economic variables as well as the expected inflation rate and the nominal interest rate.

Suggested Citation

  • Lioui, Abraham & Poncet, Patrice, 2012. "On model ambiguity and money neutrality," Journal of Macroeconomics, Elsevier, vol. 34(4), pages 1020-1033.
    • Handle: RePEc:eee:jmacro:v:34:y:2012:i:4:p:1020-1033
    DOI: 10.1016/j.jmacro.2012.08.003
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    References listed on IDEAS

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    Cited by:

    1. Thomas Lejeune & Raf Wouters, 2019. "A macroeconomic model with heterogeneous and financially-constrained intermediaries," Working Paper Research 367, National Bank of Belgium.

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    More about this item

    Keywords

    Money neutrality; Dynamic monetary equilibrium; Model misspecification; Preference for robustness; Risk aversion; Stochastic money supply process; Stochastic capital growth process;
    All these keywords.

    JEL classification:

    • E40 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - General
    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • O42 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - Monetary Growth Models

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