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Consumption Externalities and Equilibrium Dynamics with Heterogenous Agents

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Author Info
Kazuo Mino () (Graduate School of Economics, Osaka University)
Yasuhiro Nakamoto () (Graduate School of Economics, Osaka University)

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Abstract

This paper explores the effect of consumption externalities on equilibrium dynamics of a standard neoclassical growth model in which there are two types of agents. To emphasize the presence of heterogenous agents, we distinguish intergroup consumption externalities from intragroup consumption externalities. We show that if the intragroup externalities dominates the intrergroup external effects, then the steady state equilibrium satisfies saddle-point stability and the equilibrium path of the economy is uniquely determined. In contrast, if the intergroup external effects of consumption are strong enough, the steady-state equilibrium is either unstable or locally indeterminate. Based on the analytical as well as numerical considerations, we give intuitive implications of stability conditions.

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Publisher Info
Paper provided by Osaka University, Graduate School of Economics and Osaka School of International Public Policy (OSIPP) in its series Discussion Papers in Economics and Business with number 08-30.

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Length: 30 pages
Date of creation: Sep 2008
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Handle: RePEc:osk:wpaper:0830

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Web page: http://www.econ.osaka-u.ac.jp/
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Related research
Keywords: Consumption externalities Equilibrium determinacy Heterogeneous agents Progressive taxation

Find related papers by JEL classification:
E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
O42 - Economic Development, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - Monetary Growth Models

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  1. Bill Dupor & Wen-Fang Liu, 2003. "Jealousy and Equilibrium Overconsumption," American Economic Review, American Economic Association, vol. 93(1), pages 423-428, March. [Downloadable!]
  2. Chen, Been-Lon & Hsu, Mei, 2007. "Admiration is a source of indeterminacy," Economics Letters, Elsevier, vol. 95(1), pages 96-103, April. [Downloadable!] (restricted)
  3. Sarte, Pierre-Daniel G., 1997. "Progressive taxation and income inequality in dynamic competitive equilibrium," Journal of Public Economics, Elsevier, vol. 66(1), pages 145-171, October. [Downloadable!] (restricted)
  4. Gali, Jordi, 1994. "Keeping Up with the Joneses: Consumption Externalities, Portfolio Choice, and Asset Prices," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 26(1), pages 1-8, February. [Downloadable!] (restricted)
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  5. Liu, Wen-Fang & Turnovsky, Stephen J., 2005. "Consumption externalities, production externalities, and long-run macroeconomic efficiency," Journal of Public Economics, Elsevier, vol. 89(5-6), pages 1097-1129, June. [Downloadable!] (restricted)
  6. Sorger, Gerhard, 2002. "On the Long-Run Distribution of Capital in the Ramsey Model," Journal of Economic Theory, Elsevier, vol. 105(1), pages 226-243, July. [Downloadable!] (restricted)
  7. Alonso-Carrera, Jaime & Caballé, Jordi & Raurich, Xavier, 2008. "Can consumption spillovers be a source of equilibrium indeterminacy?," Journal of Economic Dynamics and Control, Elsevier, vol. 32(9), pages 2883-2902, September. [Downloadable!] (restricted)
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  8. Guo, Jang-Ting & Lansing, Kevin J., 1998. "Indeterminacy and Stabilization Policy," Journal of Economic Theory, Elsevier, vol. 82(2), pages 481-490, October. [Downloadable!] (restricted)
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  9. Garriga, Carlos, 2006. "Overconsumption, reference groups, and equilibrium efficiency," Economics Letters, Elsevier, vol. 91(3), pages 420-424, June. [Downloadable!] (restricted)
  10. Li Wenli & Pierre -Daniel Sarte, 2004. "Progressive Taxation and Long-Run Growth," American Economic Review, American Economic Association, vol. 94(5), pages 1705-1716, December. [Downloadable!]
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