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Heterogeneity in Inflation Expectations and Macroeconomic Stability under Satisficing Learning

Author

Listed:
  • Jaylson Jair da Silveira
  • Gilberto Tadeu Lima

Abstract

Drawing on a considerable empirical and experimental literature that finds persistent and endogenously time-varying heterogeneity in inflation expectations, this paper embeds two inflation forecasting strategies – one based on costly full rationality or perfect foresight, the second based on costless bounded rationality or adaptive foresight – in a basic macroeconomic model. Drawing in particular on the significant evidence that forecast errors have to pass some threshold before agents abandon their previously selected inflation forecasting strategy, we assume that agents switch between these forecasting strategies based on satisficing evolutionary dynamics. We find that convergence to a long-run equilibrium configuration consistent with output growth, unemployment and inflation at their natural levels is achieved even when heterogeneity in inflation expectations (with predominance of the adaptive foresight strategy) is an attractor of a noisy satisficing evolutionary dynamics. Therefore, in accordance with the empirical evidence, persistent heterogeneity in inflation expectations (with prevalence of bounded rational expectations) emerges as a long-run equilibrium outcome.

Suggested Citation

  • Jaylson Jair da Silveira & Gilberto Tadeu Lima, 2014. "Heterogeneity in Inflation Expectations and Macroeconomic Stability under Satisficing Learning," Working Papers, Department of Economics 2014_28, University of São Paulo (FEA-USP).
  • Handle: RePEc:spa:wpaper:2014wpecon28
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    File URL: http://www.repec.eae.fea.usp.br/documentos/Silveira_Lima_28WP.pdf
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    References listed on IDEAS

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    More about this item

    Keywords

    Heterogeneous inflation expectations; perfect foresight; adaptive foresight; noisy satisficing evolutionary dynamics;
    All these keywords.

    JEL classification:

    • E03 - Macroeconomics and Monetary Economics - - General - - - Behavioral Macroeconomics
    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • C62 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Existence and Stability Conditions of Equilibrium
    • C73 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Stochastic and Dynamic Games; Evolutionary Games

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