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Modeling diverse expectations in an aggregated New Keynesian Model

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  • Kurz, Mordecai
  • Piccillo, Giulia
  • Wu, Howei

Abstract

We explore a New Keynesian Model with diverse beliefs and study the aggregation problems in the log-linearized economy. We show the solution of these problems depend upon the belief structure. Agents' beliefs are described by individual state variables and satisfy three Rationality Axioms, leading to the emergence of an aggregate state variable named “mean market state of belief.” In equilibrium, endogenous variables are functions of mean market belief and this state variable is the tool used to solve the aggregation problems.

Suggested Citation

  • Kurz, Mordecai & Piccillo, Giulia & Wu, Howei, 2013. "Modeling diverse expectations in an aggregated New Keynesian Model," Journal of Economic Dynamics and Control, Elsevier, vol. 37(8), pages 1403-1433.
  • Handle: RePEc:eee:dyncon:v:37:y:2013:i:8:p:1403-1433 DOI: 10.1016/j.jedc.2013.01.016
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    Citations

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    Cited by:

    1. Mordecai Kurz & Maurizio Motolese & Giulia Piccillo & Howei Wu, 2015. "Monetary Policy with Diverse Private Expectations," Discussion Papers 15-004, Stanford Institute for Economic Policy Research.
    2. Giamattei, Marcus, 2015. "Cold Turkey vs. gradualism: Evidence on disinflation strategies from a laboratory experiment," Passauer Diskussionspapiere, Volkswirtschaftliche Reihe V-67-15, University of Passau, Faculty of Business and Economics.
    3. Giulia Piccillo, 2013. "Exchange Rates and Asset Prices: Heterogeneous Agents at Work," CESifo Working Paper Series 4257, CESifo Group Munich.
    4. Pecora, Nicolò & Spelta, Alessandro, 2017. "Managing monetary policy in a New Keynesian model with many beliefs types," Economics Letters, Elsevier, vol. 150(C), pages 53-58.
    5. Emanuel Gasteiger, 2013. "Do heterogeneous expectations constitute a challenge for policy interaction?," Working Papers Series 2 13-02, ISCTE-IUL, Business Research Unit (BRU-IUL).
    6. Cars Hommes & Domenico Massaro & Matthias Weber, 2015. "Monetary Policy under Behavioral Expectations: Theory and Experiment," Tinbergen Institute Discussion Papers 15-087/II, Tinbergen Institute.
    7. Hommes, C.H. & Lustenhouwer, J., 2015. "Inflation Targeting and Liquidity Traps under Endogenous Credibility," CeNDEF Working Papers 15-03, Universiteit van Amsterdam, Center for Nonlinear Dynamics in Economics and Finance.

    More about this item

    Keywords

    New Keynesian Model; Heterogenous beliefs; Market state of belief; Bayesian learning; Updating beliefs; Rational beliefs; Monetary policy rule;

    JEL classification:

    • C53 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Forecasting and Prediction Models; Simulation Methods
    • D8 - Microeconomics - - Information, Knowledge, and Uncertainty
    • D84 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Expectations; Speculations
    • E27 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Forecasting and Simulation: Models and Applications
    • E42 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Monetary Sytsems; Standards; Regimes; Government and the Monetary System
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading

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