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Why do monetary policies matter? : An experimental study of saving and inflation in an overlapping generations model

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  • Bernasconi, Michele
  • Kirchkamp, Oliver

Abstract

We study experiments of an overlapping generations model where inflation is determined by the monetary policy and by the amount of average saving within each period. We use a new experimental setup that allows us to observe more details of the process of expectation forming and separate this process from the actual saving process. In contrast to experimental findings by Lim, Prescott, Sunder; Marimon, Spear, Sunder; and Marimon, Sunder we find that (1) agents do not form first-order adaptive expectations; (2) subjects ‘over-save’ for precautionary reasons; as a result (3) the so-called Friedman conjecture holds, i.e. monetary policies which are equivalent in static equilibrium exhibit different levels and different volatility of inflation in the experiment. This may generate important policy trade-offs between monetary regimes. We discuss our findings and relate them to current research on adaptive learning and the role it may have in ranking alternative monetary policies.

Suggested Citation

  • Bernasconi, Michele & Kirchkamp, Oliver, 1998. "Why do monetary policies matter? : An experimental study of saving and inflation in an overlapping generations model," Papers 98-47, Sonderforschungsbreich 504.
    • Handle: RePEc:mnh:spaper:2865
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    1. Marimon, Ramon & Sunder, Shyam, 1994. "Expectations and Learning under Alternative Monetary Regimes: An Experimental Approach," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 4(1), pages 131-162, January.
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    6. Marimon, Ramon & Sunder, Shyam, 1995. "Does a constant money growth rule help stabilize inflation?: experimental evidence," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 43(1), pages 111-156, December.
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    19. Bernasconi, Michele & Kirchkamp, Oliver, 1998. "Why monetary policy matters --- An experimental study of saving, inflation and monetary policies in an overlapping generations model," Sonderforschungsbereich 504 Publications 98-47, Sonderforschungsbereich 504, Universität Mannheim;Sonderforschungsbereich 504, University of Mannheim.
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    Keywords

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    JEL classification:

    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth
    • C92 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Group Behavior

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