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Pareto Improving Price Regulation When the Asset Market Is Incomplete

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  • Herings P. Jean-Jacques
  • Polemarchakis H. M.

    (METEOR)

Abstract

When the asset market is incomplete, competitive equilibria are constrained suboptimal, which provides scope for Pareto improving interventions. Price regulation can be such a Pareto improving policy, even when the welfare effects of rationing are taken into account. An appealing aspect of price regulation is that it operates anonymously on market variables. The welfare analysis of price regulation calls for an extension of the equilibrium theory of incomplete markets to fix-price equilibria.Fix-price equilibria exist under standard assumptions. There are robust examples, however, for which at regulated prices close to competitive prices, there are no fix-price equilibria close to competitive equilibria. We provide necessary and sufficient conditions for the local uniqueness of fix-price equilibria, and show that under these conditions Pareto improving price regulation is generically possible.

Suggested Citation

  • Herings P. Jean-Jacques & Polemarchakis H. M., 2000. "Pareto Improving Price Regulation When the Asset Market Is Incomplete," Research Memorandum 008, Maastricht University, Maastricht Research School of Economics of Technology and Organization (METEOR).
    • Handle: RePEc:unm:umamet:2000008
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    Cited by:

    1. Weerachart T. Kilenthong & Robert M. Townsend, 2014. "A Market Based Solution to Price Externalities: A Generalized Framework," NBER Working Papers 20275, National Bureau of Economic Research, Inc.
    2. Jacques H. Drèze & P. Jean‐Jacques Herings, 2008. "Kinky perceived demand curves and Keynes–Negishi equilibria," International Journal of Economic Theory, The International Society for Economic Theory, vol. 4(2), pages 207-246, June.
    3. Jean-Marc Bonnisseau & Elena Mercato, 2010. "Externalities, consumption constraints and regular economies," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 44(1), pages 123-147, July.
    4. repec:eee:jetheo:v:177:y:2018:i:c:p:222-244 is not listed on IDEAS
    5. Kubler, F. & Chiappori, P. -A. & Ekeland, I. & Polemarchakis, H. M., 2002. "The Identification of Preferences from Equilibrium Prices under Uncertainty," Journal of Economic Theory, Elsevier, vol. 102(2), pages 403-420, February.
    6. Herings, P. Jean-Jacques & van der Laan, Gerard & Talman, Dolf, 2009. "Equilibria with coordination failures," Journal of Mathematical Economics, Elsevier, vol. 45(1-2), pages 23-37, January.
    7. Habis, Helga & Herings, P. Jean-Jacques, 2011. "Core concepts for incomplete market economies," Journal of Mathematical Economics, Elsevier, vol. 47(4-5), pages 595-609.
    8. Mendolicchio, C. & Pietra, T., 2016. "Endowment redistribution and Pareto improvements in GEI economies," Journal of Mathematical Economics, Elsevier, vol. 67(C), pages 181-190.
    9. Herings, P. Jean-Jacques & Konovalov, Alexander, 2009. "Constrained suboptimality when prices are non-competitive," Journal of Mathematical Economics, Elsevier, vol. 45(1-2), pages 43-58, January.
    10. Jacques Drèze & Alain Durré & Jacques Drèze & Jean-François Carpantier, 2014. "Fiscal Integration and Growth Stimulation in Europe," Recherches économiques de Louvain, De Boeck Université, vol. 80(2), pages 5-45.
    11. Herings, P. Jean-Jacques, 2018. "Equilibrium and matching under price controls," Journal of Economic Theory, Elsevier, vol. 177(C), pages 222-244.
    12. Citanna, A. & Polemarchakis, H.M. & Tirelli, M., 2006. "The taxation of trades in assets," Journal of Economic Theory, Elsevier, vol. 126(1), pages 299-313, January.
    13. Jean-Marc Bonnisseau & Elena L. Del Mercato, 2008. "Externalities, consumption constraints and regular economies," Post-Print halshs-00257731, HAL.
    14. repec:eee:mateco:v:72:y:2017:i:c:p:122-133 is not listed on IDEAS
    15. KÜBLER, Felix & POLEMARCHAKIS, Heracles, 1999. "The identification of preferences from the equilibrium prices of commodities and assets," CORE Discussion Papers 1999033, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
    16. repec:mje:mjejnl:v:13:y:2017:i:1:p:141-158 is not listed on IDEAS
    17. Habis Helga & Herings P. Jean-Jacques, 2009. "Cooperation Under Incomplete Contracting," Research Memorandum 026, Maastricht University, Maastricht Research School of Economics of Technology and Organization (METEOR).
    18. Marko Backovic & Zoran Popovic, 2012. "The Analysis Of Model Of General Economic Equilibrium And Financial Instability Of Economic System," Montenegrin Journal of Economics, Economic Laboratory for Transition Research (ELIT), vol. 8(1), pages 63-85.
    19. Konstantinides, Dimitrios G. & Kountzakis, Christos E., 2011. "Risk measures in ordered normed linear spaces with non-empty cone-interior," Insurance: Mathematics and Economics, Elsevier, vol. 48(1), pages 111-122, January.
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    More about this item

    Keywords

    microeconomics ;

    JEL classification:

    • D45 - Microeconomics - - Market Structure, Pricing, and Design - - - Rationing; Licensing
    • D52 - Microeconomics - - General Equilibrium and Disequilibrium - - - Incomplete Markets
    • D60 - Microeconomics - - Welfare Economics - - - General

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