Indeterminacy in a finance constrained unionized economy

Teresa Lloyd-Braga*, Leonor Modesto

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


We introduce labor unions and unemployment in a finance constrained monetary economy with heterogenous agents and productive labor externalities. We find that unions, introducing endogenous markup variability, influence the dynamics of the model. Although a lower bound for labor externalities is always required for indeterminacy, this lower bound decreases with union power when the elasticity of substitution between capital and labor is above one. For values of this elasticity below one, this result is reversed. We also show that Hopf bifurcations may occur as union bargaining power crosses a critical value. Finally, we find that unions increase simultaneously steady state employment, capital accumulation and welfare iff the (equilibrium) marginal productivity of labor is decreasing in employment.
Original languageEnglish
Pages (from-to)347-364
Number of pages18
JournalJournal of Mathematical Economics
Issue number3-4
Publication statusPublished - 1 Apr 2007


  • Externalities
  • Hopf bifurcations
  • Indeterminacy
  • Unions


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