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A Growth Model with Qualities, Varieties, and Human Capital: Stability and Transitional Dynamics

  • Tiago Neves Sequeira

    ()

    (Universidade da Beira Interior, CEFAGE-UBI and INOVA)

  • Alexandra Ferreira Lopes

    ()

    (ISCTE - IUL, ISCTE Business School, UNIDE - IUL and CEFAGE-UBI)

  • Orlando Gomes

    ()

    (ISCAL - Lisbon Polytechnic Institute and UNIDE - IUL)

This article analyses the stability properties of the steady-state and the transitional dynamics of an endogenous growth model with human capital, increasing-varieties R&D, and quality-ladders R&D [Strulik, 2005, Review of International Economics, 13 (1): 129-145]. We show that when spillovers within R&D sectors are higher than spillovers across the two R&D sectors, the equilibrium is unstable. However, when spillovers between sectors are higher than within, the equilibrium is a saddle-path. This result emphasizes the need for empirical research that compares quantitatively the importance of these two types of spillovers and highlights the importance of studying intersectoral effects between the two R&D sectors. We describe plausible paths of economic development after changes in crucial parameters and uncover some transitional effects that were impossible to detect in the steady-state analysis. We also show that this model’s transition dynamics can mimic the main features of the process of productivity slowdown that began in the 1970’s.

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Paper provided by University of Evora, CEFAGE-UE (Portugal) in its series CEFAGE-UE Working Papers with number 2012_04.

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Length: 18 pages
Date of creation: 2012
Date of revision:
Handle: RePEc:cfe:wpcefa:2012_04
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  1. Sequeira, Tiago Neves, 2007. "Transitional Dynamics of an Endogenous Growth Model with an Erosion Effect," FEUNL Working Paper Series wp508, Universidade Nova de Lisboa, Faculdade de Economia.
  2. Eicher, Theo S. & Turnovsky, Stephen J., 2001. "Transitional dynamics in a two-sector non-scale growth model," Journal of Economic Dynamics and Control, Elsevier, vol. 25(1-2), pages 85-113, January.
  3. "Ana Balc�o" "Reis" & "Tiago Neves" "Sequeira", 2007. "Human Capital and Overinvestment in R&D," Scandinavian Journal of Economics, Wiley Blackwell, vol. 109(3), pages 573-591, 09.
  4. Timo Trimborn & Karl-Josef Koch & Thomas Steger, 2006. "Multi-Dimensional Transitional Dynamics: A Simple Numberical Procedure," CESifo Working Paper Series 1745, CESifo Group Munich.
  5. Aghion, Philippe & Howitt, Peter, 1992. "A Model of Growth Through Creative Destruction," Scholarly Articles 12490578, Harvard University Department of Economics.
  6. Robert J. Barro & Jong-Wha Lee, 2010. "A New Data Set of Educational Attainment in the World, 1950-2010," NBER Working Papers 15902, National Bureau of Economic Research, Inc.
  7. Funke, Michael & Strulik, Holger, 2000. "On endogenous growth with physical capital, human capital and product variety," European Economic Review, Elsevier, vol. 44(3), pages 491-515, March.
  8. Arnold, Lutz G., 2000. "Endogenous growth with physical capital, human capital and product variety: A comment," European Economic Review, Elsevier, vol. 44(8), pages 1599-1605, August.
  9. Arnold, Lutz G., 1998. "Growth, Welfare, and Trade in an Integrated Model of Human-Capital Accumulation and Research," Journal of Macroeconomics, Elsevier, vol. 20(1), pages 81-105, January.
  10. Lutz G. Arnold, 2000. "Endogenous technological change: a note on stability," Economic Theory, Springer, vol. 16(1), pages 219-226.
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