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Do heterogeneous expectations constitute a challenge for policy interaction?

  • Emanuel Gasteiger


Yes, indeed; at least when it comes to fiscal and monetary policy interaction. We examine a Neo-Classical economy, where agents have either rational or adaptive expectations. We demonstrate that the monetarist solution can be unique and stationary under a passive fiscal/active monetary policy regime, because active monetary policy incorporates expectational heterogeneity. In contrast, under an active fiscal/passive monetary policy regime, the fiscalist solution is prone to explosive dynamics d e to empirically plausible expectational heterogeneity. However, conditional on stationarity, both regimes can yield promising business cycle dynamics, which are absent in the homogeneous expectations benchmark.

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Paper provided by ISCTE-IUL, Business Research Unit (BRU-IUL) in its series Working Papers Series 2 with number 13-02.

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Date of creation: 18 Mar 2013
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Handle: RePEc:isc:iscwp2:bruwp1302
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  1. Paul De Grauwe, 2012. "Lectures on Behavioral Macroeconomics," Economics Books, Princeton University Press, edition 1, volume 1, number 9891.
  2. Hommes, Cars, 2011. "The heterogeneous expectations hypothesis: Some evidence from the lab," Journal of Economic Dynamics and Control, Elsevier, vol. 35(1), pages 1-24, January.
  3. George W. Evans & Seppo Honkapohja, 2002. "Policy Interaction, Learning and the Fiscal Theory of Prices," University of Oregon Economics Department Working Papers 2002-17, University of Oregon Economics Department, revised 07 Jun 2007.
  4. George Evans & William Branch, 2003. "Intrinsic Heterogeneity in Expectation Formation," Computing in Economics and Finance 2003 312, Society for Computational Economics.
  5. Branch, William A. & McGough, Bruce, 2009. "A New Keynesian model with heterogeneous expectations," Journal of Economic Dynamics and Control, Elsevier, vol. 33(5), pages 1036-1051, May.
  6. Tiziana Assenza & Peter Heemeijer & Cars Hommes & Domenico Massaro, 2013. "Individual Expectations and Aggregate Macro Behavior," Tinbergen Institute Discussion Papers 13-016/II, Tinbergen Institute.
  7. Paul Grauwe, 2010. "The scientific foundation of dynamic stochastic general equilibrium (DSGE) models," Public Choice, Springer, vol. 144(3), pages 413-443, September.
  8. repec:att:wimass:9530 is not listed on IDEAS
  9. Bovi, Maurizio, 2013. "Are the representative agent’s beliefs based on efficient econometric models?," Journal of Economic Dynamics and Control, Elsevier, vol. 37(3), pages 633-648.
  10. Brock, W.A. & Hommes, C.H., 1996. "A Rational Route to Randomness," Working papers 9530r, Wisconsin Madison - Social Systems.
  11. Leeper, Eric M., 1991. "Equilibria under 'active' and 'passive' monetary and fiscal policies," Journal of Monetary Economics, Elsevier, vol. 27(1), pages 129-147, February.
  12. George W. Evans & Seppo Honkapohja, 2003. "Policy Interaction, Expectations and the Liquidity Trap," University of Oregon Economics Department Working Papers 2003-33, University of Oregon Economics Department, revised 06 Jul 2004.
  13. William A. Branch, 2004. "The Theory of Rationally Heterogeneous Expectations: Evidence from Survey Data on Inflation Expectations," Economic Journal, Royal Economic Society, vol. 114(497), pages 592-621, 07.
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