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Does imperfect competition foster capital accumulation in a developing economy

  • Pascal Belan


    (LEN and EUREQua)

  • Philippe Michel

    (GREQAM and EUREQua)

  • Bertrand Wigniolle



We analyze the relationship between imperfect competition and capital accumulation in a dual economy, with traditional and modern sectors and two types of agents (workers and capitalists). Workers allocate their time endowment between the two sectors. Capitalists accumulate wealth in the modern sector. The economy is open to capital flows, but capitalists face borrowing constraints. Non-competitive behavior of capitalists results in a rent, which is extracted from the workers and lowers employment in the modern sector. In the long-run, if capitalists are unconstrained, imperfect competition is beneficial for capital accumulation and growth, while it is detrimental in the converse case. Moreover, not-binding borrowing constraints lead to higher employment and wages. This can motivate the introduction of a subsidy on bequests that allows the economy to reach the unconstrained regime, and is welfare-enhancing for workers.

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Paper provided by Université Panthéon-Sorbonne (Paris 1) in its series Cahiers de la Maison des Sciences Economiques with number v05026.

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Length: 27 pages
Date of creation: Mar 2005
Date of revision:
Handle: RePEc:mse:wpsorb:v05026
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  1. Gabszewicz, J. & Michel, P., 1992. "Oligopoly Equilibria in Exchange Economies," Papiers d'Economie Mathématique et Applications 92.26, Université Panthéon-Sorbonne (Paris 1).
  2. Barro, Robert J., 1974. "Are Government Bonds Net Wealth?," Scholarly Articles 3451399, Harvard University Department of Economics.
  3. Sergio Rebelo & Piyabha Kongsamut & Danyang Xie, 2001. "Beyond Balanced Growth," IMF Working Papers 01/85, International Monetary Fund.
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  5. JASKOLD GABSZEWICZ, Jean & VIAL, Jean-Philippe, . "Oligopoly "Ã la Cournot" in a general equilibrium analysis," CORE Discussion Papers RP 106, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  6. Codognato, Giulio & Gabszewicz, Jean J, 1993. "Cournot-Walras Equilibria in Markets with a Continuum of Traders," Economic Theory, Springer, vol. 3(3), pages 453-64, July.
  7. Pascal Belan & Philippe Michel & Bertrand Wigniolle, 2007. "Capital accumulation, welfare and the emergence of pension fund activism," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-00268847, HAL.
  8. Joseph E. Stiglitz, 1967. "Distribution of Income and Wealth Among Individuals," Cowles Foundation Discussion Papers 238, Cowles Foundation for Research in Economics, Yale University.
  9. N. Gregory Mankiw, 2000. "The Savers-Spenders Theory of Fiscal Policy," American Economic Review, American Economic Association, vol. 90(2), pages 120-125, May.
  10. Becker, Robert A. & Foias, Ciprian, 2007. "Strategic Ramsey equilibrium dynamics," Journal of Mathematical Economics, Elsevier, vol. 43(3-4), pages 318-346, April.
  11. Matsuyama, Kiminori, 2000. "Endogenous Inequality," Review of Economic Studies, Wiley Blackwell, vol. 67(4), pages 743-59, October.
  12. John Laitner, 1982. "Monopoly and Long-Run Capital Accumulation," Bell Journal of Economics, The RAND Corporation, vol. 13(1), pages 143-157, Spring.
  13. 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.
  14. Bertrand Wigniolle & Philippe Michel & Pascal Belan, 2002. "Pension funds and capital accumulation," Economics Bulletin, AccessEcon, vol. 4(1), pages 1-8.
  15. Bourguignon, Francois, 1981. "Pareto Superiority of Unegalitarian Equilibria in Stiglitz' Model of Wealth Distribution with Convex Saving Function," Econometrica, Econometric Society, vol. 49(6), pages 1469-75, November.
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