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Bounded-rationality and heterogeneous agents: Long or short forecasters?

Author

Listed:
  • Elton Beqiraj

    (University La Sapienza)

  • Giovanni Di Bartolomeo

    (University La Sapienza)

  • Marco Di Pietro

    (University La Sapienza)

  • Carolina Serpieri

    (European Commission - JRC)

Abstract

Our paper estimates and compares behavioral New-Keynesian DSGE models derived under two alternative ways to introduce heterogeneous expectations. We assume that agents may be either short-sighted or long-horizon forecasters. The difference does not matter when agents have rational expectations, but it does when a fraction of them form beliefs about the future according to some heuristics. Bayesian estimations show that a behavioral model based on short forecasters fits the data better than one based on long forecasters. Long-horizon predictors exhibit very poor predictive ability, whereas the short forecasters’ model also outperforms the rational expectation framework. We show that the superiority is due to its ability to capture heterogeneous consumers’ expectations. Finally, by Monte-Carlo-filtering mapping, we investigate the indeterminacy regions to complement existing literature.

Suggested Citation

  • Elton Beqiraj & Giovanni Di Bartolomeo & Marco Di Pietro & Carolina Serpieri, 2018. "Bounded-rationality and heterogeneous agents: Long or short forecasters?," JRC Research Reports JRC111392, Joint Research Centre.
  • Handle: RePEc:ipt:iptwpa:jrc111392
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    Cited by:

    1. Ilabaca, Francisco & Milani, Fabio, 2021. "Heterogeneous expectations, indeterminacy, and postwar US business cycles," Journal of Macroeconomics, Elsevier, vol. 68(C).
    2. Beqiraj, Elton & Di Bartolomeo, Giovanni & Di Pietro, Marco, 2019. "Beliefs formation and the puzzle of forward guidance power," Journal of Macroeconomics, Elsevier, vol. 60(C), pages 20-32.
    3. Elton Beqiraj & Giovanni Di Bartolomeo & Marco Di Pietro & Carolina Serpieri, 2020. "Bounded rationality and heterogeneous expectations: Euler versus anticipated-utility approach," Journal of Economics, Springer, vol. 130(3), pages 249-273, August.
    4. Lustenhouwer, Joep, 2020. "Fiscal Stimulus In Expectations-Driven Liquidity Traps," Working Papers 0683, University of Heidelberg, Department of Economics.
    5. Lustenhouwer, Joep, 2018. "Fiscal stimulus in an expectation driven liquidity trap," BERG Working Paper Series 138, Bamberg University, Bamberg Economic Research Group.
    6. Giovanni Di Bartolomeo & Carolina Serpieri, 2018. "Robust Optimal Policies in a Behavioural New Keynesian Model," JRC Research Reports JRC111603, Joint Research Centre.
    7. Gelain, Paolo & Iskrev, Nikolay & J. Lansing, Kevin & Mendicino, Caterina, 2019. "Inflation dynamics and adaptive expectations in an estimated DSGE model," Journal of Macroeconomics, Elsevier, vol. 59(C), pages 258-277.
    8. Lustenhouwer, Joep, 2020. "Fiscal stimulus in expectations-driven liquidity traps," Journal of Economic Behavior & Organization, Elsevier, vol. 177(C), pages 661-687.

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    monetary policy; bounded rationality; heterogeneous expecta- tions;
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