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Negishi-Solow efficiency wages, unemployment insurance and dynamic deterministic indeterminacy

  • Jean-Michel Grandmont

This paper introduces efficiency wages designed to provide workers with incentives to make appropriate effort levels, and involuntary unemployment, along the pioneering lines of Negishi (1979), Solow (1979), Shapiro and Stiglitz (1984), in a dynamic model involving heterogeneous agents and financial constraints as in Woodford (1986) and Grandmont, Pintus and de Vilder (GPV, 1998). Effort varies continuously while there is unemployment insurance funded out of taxation of labour incomes. Increasing unemployment insurance is beneficial to employment along the deterministic stationary state, and can even in some cases lead to a Pareto welfare improvement for all agents, through general equilibrium effects, by generating higher individual real labour incomes, hence larger consumptions of employed and unemployed workers, and thus a higher production. On the other hand, the local (in)determinacy properties of the stationary state are opposite to those obtained in the competitive specification of the model (GPV, 1998) : local determinacy (indeterminacy) occurs for elasticities of capitalefficient labour substitution lower (larger) than a quite small bound. Increasing unemployment insurance is more likely to lead to local indeterminacy and thus to generate dynamic inefficiencies due to the corresponding expectations coordination failures.

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Article provided by The International Society for Economic Theory in its journal International Journal of Economic Theory.

Volume (Year): 4 (2008)
Issue (Month): 2 ()
Pages: 247-272

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Handle: RePEc:bla:ijethy:v:4:y:2008:i:2:p:247-272
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  1. Nakajima, Tomoyuki, 2006. "Unemployment and indeterminacy," Journal of Economic Theory, Elsevier, vol. 126(1), pages 314-327, January.
  2. Baily, Martin Neil, 1978. "Some aspects of optimal unemployment insurance," Journal of Public Economics, Elsevier, vol. 10(3), pages 379-402, December.
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  4. Frédéric Dufourt & Teresa Lloyd-Braga & Leonor Modesto, 2008. "Indeterminacy, bifurcations and unemployment fluctuations," Post-Print halshs-00815504, HAL.
  5. Shapiro, Carl & Stiglitz, Joseph E, 1984. "Equilibrium Unemployment as a Worker Discipline Device," American Economic Review, American Economic Association, vol. 74(3), pages 433-44, June.
  6. Grandmont, Jean-michel, 1989. "Keynesian issues and economic theory," CEPREMAP Working Papers (Couverture Orange) 8907, CEPREMAP.
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  8. G, Cazzavillan & T, Lloyd-Braga & P, A, Pintus, 1997. "Multiple Steady States and Endogenous Fluctuations with Increasing Returns to Scale in Production," Working Papers 97-29, Centre de Recherche en Economie et Statistique.
  9. GRANDMONT, Jean-Michel & PINTUS, Patrick & de VILDER, Robin, 1997. "Capital-labor substitution and competitive nonlinear endogenous business cycles," CORE Discussion Papers 1997087, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  10. Solow, Robert M., 1979. "Another possible source of wage stickiness," Journal of Macroeconomics, Elsevier, vol. 1(1), pages 79-82.
  11. Alexopoulos, Michelle, 2004. "Unemployment and the business cycle," Journal of Monetary Economics, Elsevier, vol. 51(2), pages 277-298, March.
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  13. Marta Aloi & Teresa Lloyd-Braga, . "National Labor Markets, International Factor Mobility and Macroeconomic Instability," Discussion Papers 09/10, University of Nottingham, Centre for Finance, Credit and Macroeconomics (CFCM).
  14. repec:cup:cbooks:9780521393188 is not listed on IDEAS
  15. repec:cup:cbooks:9780521435246 is not listed on IDEAS
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