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A note on global dynamics and imbalance effects in the Lucas-Uzawa model

Author

Listed:
  • Raouf Boucekkine
  • B. Martínez
  • J. R. Ruiz-Tamarit

Abstract

In the traditional literature on the Lucas-Uzawa model, it is proved that in the neighborhood of the long-run balanced growth path, human capital stock grows at a rate greater than its long-run counterpart when the ratio physical to human capi- tal is above its long run value if and only if the capital share in the production of physical good is lower than the inverse of the elasticity of intertemporal substitution in consumption. We first prove that the claim is true outside the neighborhood of balanced growth paths. More importantly, we identify a crucial asymmetry: what- ever the position of the capital share with respect to the inverse of the elasticity of intertemporal substitution, physical capital stock always grows at a rate lower than its long-run counterpart when the ratio physical to human capital is above its long run value.

Suggested Citation

  • Raouf Boucekkine & B. Martínez & J. R. Ruiz-Tamarit, 2007. "A note on global dynamics and imbalance effects in the Lucas-Uzawa model," Working Papers 2007_26, Business School - Economics, University of Glasgow.
  • Handle: RePEc:gla:glaewp:2007_26
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    References listed on IDEAS

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    1. Benhabib Jess & Perli Roberto, 1994. "Uniqueness and Indeterminacy: On the Dynamics of Endogenous Growth," Journal of Economic Theory, Elsevier, vol. 63(1), pages 113-142, June.
    2. Casey B. Mulligan & Xavier Sala-i-Martin, 1993. "Transitional Dynamics in Two-Sector Models of Endogenous Growth," The Quarterly Journal of Economics, Oxford University Press, vol. 108(3), pages 739-773.
    3. Xie Danyang, 1994. "Divergence in Economic Performance: Transitional Dynamics with Multiple Equilibria," Journal of Economic Theory, Elsevier, vol. 63(1), pages 97-112, June.
    4. d'Albis, Hippolyte & Le Van, Cuong, 2006. "Existence of a competitive equilibrium in the Lucas (1988) model without physical capital," Journal of Mathematical Economics, Elsevier, vol. 42(1), pages 46-55, February.
    5. Ortigueira, Salvador, 1998. "Fiscal policy in an endogenous growth model with human capital accumulation," Journal of Monetary Economics, Elsevier, vol. 42(2), pages 323-355, July.
    6. Boucekkine, R. & Ruiz-Tamarit, J.R., 2008. "Special functions for the study of economic dynamics: The case of the Lucas-Uzawa model," Journal of Mathematical Economics, Elsevier, vol. 44(1), pages 33-54, January.
    7. Lucas, Robert Jr., 1988. "On the mechanics of economic development," Journal of Monetary Economics, Elsevier, vol. 22(1), pages 3-42, July.
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    Citations

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    Cited by:

    1. Bella, Giovanni & Mattana, Paolo, 2014. "Global indeterminacy of the equilibrium in the Chamley model of endogenous growth in the vicinity of a Bogdanov–Takens bifurcation," Mathematical Social Sciences, Elsevier, vol. 71(C), pages 69-79.
    2. Bofota, Youyou Baende & Boucekkine, Raouf & Bala, Alain Pholo, 2016. "Social Capital As An Engine Of Growth: Multisectoral Modeling And Implications," Macroeconomic Dynamics, Cambridge University Press, vol. 20(08), pages 2093-2122, December.
    3. Raouf Boucekkine & Blanca Martínez & José Ramón Ruiz-Tamarit, 2017. "Optimal Population Growth as an Endogenous Discounting Problem: The Ramsey Case," Working Papers halshs-01579155, HAL.
    4. Brito, Paulo & Venditti, Alain, 2010. "Local and global indeterminacy in two-sector models of endogenous growth," Journal of Mathematical Economics, Elsevier, vol. 46(5), pages 893-911, September.
    5. De, Supriyo, 2014. "Intangible capital and growth in the ‘new economy’: Implications of a multi-sector endogenous growth model," Structural Change and Economic Dynamics, Elsevier, vol. 28(C), pages 25-42.
    6. Ruiz-Tamarit, J.R. & Ventura-Marco, M., 2011. "Solution to nonlinear MHDS arising from optimal growth problems," Mathematical Social Sciences, Elsevier, vol. 61(2), pages 86-96, March.
    7. Boucekkine, R. & Martínez, B. & Ruiz-Tamarit, J.R., 2013. "Growth vs. level effect of population change on economic development: An inspection into human-capital-related mechanisms," Journal of Mathematical Economics, Elsevier, vol. 49(4), pages 312-334.
    8. Hassan Benchekroun & Cees Withagen, 2008. "Global Dynamics In A Growth Model With An Exhaustible Resource," Departmental Working Papers 2008-01, McGill University, Department of Economics.
    9. repec:eee:jetheo:v:172:y:2017:i:c:p:451-477 is not listed on IDEAS

    More about this item

    Keywords

    Lucas-Uzawa; hypergeometric functions; imbalance e®ects; global dynamics.;

    JEL classification:

    • E20 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - General (includes Measurement and Data)
    • O40 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - General
    • C60 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - General

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