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Indeterminacy with small externalities: The role of non‐separable preferences

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  • Teresa Lloyd‐Braga
  • Carine Nourry
  • Alain Venditti

Abstract

In this paper we consider a Ramsey one‐sector model with non‐separable homothetic preferences, endogenous labor and productive external effects arising from average levels of capital and labor. We show that indeterminacy cannot arise when there are only capital externalities but that it does occur when there are only labor external effects. We prove that sunspot fluctuations are fully consistent with small market imperfections and realistic calibrations for the elasticity of capital–labor substitution (including the Cobb‐Douglas specification) provided the elasticity of intertemporal substitution in consumption and the elasticity of labor supply are large enough.

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  • Teresa Lloyd‐Braga & Carine Nourry & Alain Venditti, 2006. "Indeterminacy with small externalities: The role of non‐separable preferences," International Journal of Economic Theory, The International Society for Economic Theory, vol. 2(3‐4), pages 217-239, September.
  • Handle: RePEc:bla:ijethy:v:2:y:2006:i:3-4:p:217-239
    DOI: 10.1111/j.1742-7363.2006.0034.x
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    1. Benhabib Jess & Farmer Roger E. A., 1994. "Indeterminacy and Increasing Returns," Journal of Economic Theory, Elsevier, vol. 63(1), pages 19-41, June.
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    6. Pintus, Patrick A., 2007. "Local determinacy with non-separable utility," Journal of Economic Dynamics and Control, Elsevier, vol. 31(2), pages 669-682, February.
    7. Boldrin, Michele & Rustichini, Aldo, 1994. "Growth and Indeterminacy in Dynamic Models with Externalities," Econometrica, Econometric Society, vol. 62(2), pages 323-342, March.
    8. Thomas HINTERMAIER, 2001. "Lower Bounds on Externalities in Sunspot Models," Economics Working Papers ECO2001/04, European University Institute.
    9. Pelloni, Alessandra & Waldmann, Robert, 1998. "Stability properties of a growth model," Economics Letters, Elsevier, vol. 61(1), pages 55-60, October.
    10. Bennett, Rosalind L. & Farmer, Roger E. A., 2000. "Indeterminacy with Non-separable Utility," Journal of Economic Theory, Elsevier, vol. 93(1), pages 118-143, July.
    11. Patrick Pintus, 2006. "Indeterminacy with almost constant returns to scale: capital-labor substitution matters," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 28(3), pages 633-649, August.
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    Cited by:

    1. Busato, Francesco & Marchetti, Enrico, 2010. "Endogenous skill cycles," Research in Economics, Elsevier, vol. 64(3), pages 175-185, September.
    2. 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.
    3. Stefano Bosi & Francesco Magris & Alain Venditti, 2007. "Sunspot Fluctuations in Two-sector Economies with Heterogeneous Agents," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 33(2), pages 311-331, November.
    4. Busato, Francesco & Chiarini, Bruno & Marchetti, Enrico, 2011. "Indeterminacy, underground activities and tax evasion," Economic Modelling, Elsevier, vol. 28(3), pages 831-844, May.
    5. Guo, Jang-Ting & Lansing, Kevin J., 2009. "Capital-labor substitution and equilibrium indeterminacy," Journal of Economic Dynamics and Control, Elsevier, vol. 33(12), pages 1991-2000, December.
    6. Jean-Philippe Garnier, 2013. "Keeping-up with the Joneses, a new source of fluctuations in the two-sector continuous-time models," Working Papers hal-00991664, HAL.
    7. Nishimura, Kazuo & Venditti, Alain, 2010. "Indeterminacy and expectation-driven fluctuations with non-separable preferences," Mathematical Social Sciences, Elsevier, vol. 60(1), pages 46-56, July.
    8. Magris, Francesco, 2012. "Indeterminacy and multiple steady states with sector-specific externalities," Economic Modelling, Elsevier, vol. 29(6), pages 2664-2672.
    9. Jean‐Philippe Garnier & Kazuo Nishimura & Alain Venditti, 2007. "Intertemporal substitution in consumption, labor supply elasticity and sunspot fluctuations in continuous‐time models," International Journal of Economic Theory, The International Society for Economic Theory, vol. 3(4), pages 235-259, December.
    10. Been-Lon Chen & Angus Chu, 2010. "On R&D spillovers, multiple equilibria and indeterminacy," Journal of Economics, Springer, vol. 100(3), pages 247-263, July.
    11. Frédéric Dufourt & Kazuo Nishimura & Alain Venditti, 2022. "Expectations, self-fulfilling prophecies and the business cycle," Working Papers hal-03923946, HAL.
    12. Frédéric Dufourt & Kazuo Nishimura & Alain Venditti, 2016. "Sunspot fluctuations in two-sector models: New results with additively separable preferences," International Journal of Economic Theory, The International Society for Economic Theory, vol. 12(1), pages 67-83, March.
    13. Jang-Ting Guo & Kevin J. Lansing, 2008. "Capital-labor substitution, equilibrium indeterminacy, and the cyclical behavior of labor income," Working Paper Series 2008-06, Federal Reserve Bank of San Francisco.
    14. Francesco Busato & Enrico Marchetti, 2009. "Skills, sunspots and cycles," Journal of Economics, Springer, vol. 97(3), pages 189-215, July.
    15. Been‐Lon Chen & Shun‐Fa Lee & Xavier Raurich, 2020. "Non‐separable utilities and aggregate instability," International Journal of Economic Theory, The International Society for Economic Theory, vol. 16(2), pages 222-237, June.
    16. Wong, Tsz-Nga & Yip, Chong K., 2010. "Indeterminacy and the elasticity of substitution in one-sector models," Journal of Economic Dynamics and Control, Elsevier, vol. 34(4), pages 623-635, April.
    17. Nourry, Carine & Seegmuller, Thomas & Venditti, Alain, 2013. "Aggregate instability under balanced-budget consumption taxes: A re-examination," Journal of Economic Theory, Elsevier, vol. 148(5), pages 1977-2006.

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    More about this item

    JEL classification:

    • C62 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Existence and Stability Conditions of Equilibrium
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • O41 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - One, Two, and Multisector Growth Models

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