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Imperfect competition and indeterminacy of aggregate output

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Author Info
Wang, Pengfei
Wen, Yi

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Abstract

This paper shows imperfect competition can lead to indeterminacy in aggregate output in a standard DSGE model with imperfect competition. Indeterminacy arises in the model from the composition of aggregate output. In sharp contrast to the indeterminacy literature pioneered by Benhabib and Farmer [J. Benhabib, R. Farmer, Indeterminacy and increasing returns, J. Econ. Theory 63 (1) (1994) 19-41] and Gali [J. Gali, Monopolistic competition, business cycles, and the composition of aggregate demand, J. Econ. Theory 63 (1) (1994) 73-96], indeterminacy in our model is global; hence it is more robust to structural parameters. In addition, sunspots in our model can be autocorrelated. The paper provides a justification for exogenous variations in desired markups, which play an important role as a source of cost-push shocks in the monetary policy literature. Our model outperforms a standard RBC model driven by technology shocks in several dimensions, including the volatility of labor market and the hump-shaped output dynamics.

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Publisher Info
Article provided by Elsevier in its journal Journal of Economic Theory.

Volume (Year): 143 (2008)
Issue (Month): 1 (November)
Pages: 519-540
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Handle: RePEc:eee:jetheo:v:143:y:2008:i:1:p:519-540

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Web page: http://www.elsevier.com/locate/inca/622869

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Related research
Keywords: Indeterminacy Global sunspots Self-fulfilling expectations Procyclical productivity Marginal costs Counter-cyclical markup Cost-push shocks Hump-shaped impulse responses;

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References listed on IDEAS
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  6. Benhabib, Jess & Farmer, Roger E.A., 1999. "Indeterminacy and sunspots in macroeconomics," Handbook of Macroeconomics, in: J. B. Taylor & M. Woodford (ed.), Handbook of Macroeconomics, edition 1, volume 1, chapter 6, pages 387-448 Elsevier. [Downloadable!] (restricted)
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  26. Weder, Mark, 1998. "Fickle Consumers, Durable Goods, and Business Cycles," Journal of Economic Theory, Elsevier, vol. 81(1), pages 37-57, July. [Downloadable!] (restricted)
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  30. Berthold Herrendorf & Akos Valentinyi, 2003. "Determinacy Through Intertemporal Adjustment Costs," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 6(3), pages 483-497, July. [Downloadable!] (restricted)
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  32. Wen, Yi, 1998. "Capacity Utilization under Increasing Returns to Scale," Journal of Economic Theory, Elsevier, vol. 81(1), pages 7-36, July. [Downloadable!] (restricted)
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Full references

Cited by:
(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Pengfei Wang & Yi Wen, 2007. "Incomplete information and self-fulfilling prophecies," Working Papers 2007-033, Federal Reserve Bank of St. Louis. [Downloadable!]
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