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Pareto Improving Price Regulation When the Asset Market Is Incomplete

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Author Info
Herings,P. Jean-Jacques
Polemarchakis,H. M. (METEOR)

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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.

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Paper provided by Maastricht : METEOR, Maastricht Research School of Economics of Technology and Organization in its series Research Memoranda with number 008.

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Date of creation: 2000
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Handle: RePEc:dgr:umamet:2000008

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Keywords: microeconomics ;

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Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
  1. Herings, P. J. J. & Polemarchakis, H., 2002. "Equilibrium and arbitrage in incomplete asset markets with fixed prices," Journal of Mathematical Economics, Elsevier, vol. 37(2), pages 133-155, April. [Downloadable!] (restricted)
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  2. Kajii Atsushi, 1994. "Anonymity and Optimality of Competitive Equilibria when Markets Are Incomplete," Journal of Economic Theory, Elsevier, vol. 64(1), pages 115-129, October. [Downloadable!] (restricted)
  3. Benassy, Jean-Pascal, 1975. "Neo-Keynesian Disequilibrium Theory in a Monetary Economy," Review of Economic Studies, Blackwell Publishing, vol. 42(4), pages 503-23, October. [Downloadable!] (restricted)
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  4. Samuelson, Paul A, 1972. "The Consumer Does Benefit From Feasible Price Stability," The Quarterly Journal of Economics, MIT Press, vol. 86(3), pages 476-93, August. [Downloadable!] (restricted)
  5. P. Herings & Herakles Polemarchakis, 2005. "Pareto improving price regulation when the asset market is incomplete," Economic Theory, Springer, vol. 25(1), pages 135-154, 01. [Downloadable!] (restricted)
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  6. Newbery, David M G & Stiglitz, Joseph E, 1984. "Pareto Inferior Trade," Review of Economic Studies, Blackwell Publishing, vol. 51(1), pages 1-12, January. [Downloadable!] (restricted)
  7. Younes, Y, 1975. "On the Role of Money in the Process of Exchange and the Existence of a Non-Walrasian Equilibrium," Review of Economic Studies, Blackwell Publishing, vol. 42(4), pages 489-501, October. [Downloadable!] (restricted)
  8. Laroque, Guy, 1978. "The Fixed Price Equilibria: Some Results in Local Comparative Statics," Econometrica, Econometric Society, vol. 46(5), pages 1127-54, September. [Downloadable!] (restricted)
  9. Debreu, Gerard, 1970. "Economies with a Finite Set of Equilibria," Econometrica, Econometric Society, vol. 38(3), pages 387-92, May. [Downloadable!] (restricted)
  10. Martin L. Weitzman, 1977. "Is the Price System or Rationing More Effective in Getting a Commodity to Those Who Need It Most?," Bell Journal of Economics, The RAND Corporation, vol. 8(2), pages 517-524, Autumn. [Downloadable!] (restricted)
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  11. Laroque, Guy, 1981. "On the Local Uniqueness of the Fixed Price Equilibria," Review of Economic Studies, Blackwell Publishing, vol. 48(1), pages 113-29, January. [Downloadable!] (restricted)
  12. Waugh, Frederick V, 1972. "The Consumer Does Benefit From Feasible Price Stability: A Comment," The Quarterly Journal of Economics, MIT Press, vol. 86(3), pages 499, August.
  13. Samuelson, Paul A, 1972. "The Consumer Does Benefit From Feasible Price Stability: Rejoinder," The Quarterly Journal of Economics, MIT Press, vol. 86(3), pages 500-503, August. [Downloadable!] (restricted)
  14. Hart, Oliver D., 1975. "On the optimality of equilibrium when the market structure is incomplete," Journal of Economic Theory, Elsevier, vol. 11(3), pages 418-443, December. [Downloadable!] (restricted)
  15. Oi, Walter Y, 1972. "The Consumer Does Benefit From Feasible Price Stability: A Comment," The Quarterly Journal of Economics, MIT Press, vol. 86(3), pages 494-98, August. [Downloadable!] (restricted)
  16. Polemarchakis, H M, 1979. "Incomplete Markets, Price Regulation, and Welfare," American Economic Review, American Economic Association, vol. 69(4), pages 662-69, September. [Downloadable!] (restricted)
  17. Laroque, Guy & Polemarchakis, Heraklis, 1978. "On the structure of the set of fixed price equilibria," Journal of Mathematical Economics, Elsevier, vol. 5(1), pages 53-69, March. [Downloadable!] (restricted)
  18. Geanakoplos, J. D. & Polemarchakis, H. M., 1990. "Observability and optimality," Journal of Mathematical Economics, Elsevier, vol. 19(1-2), pages 153-165. [Downloadable!] (restricted)
  19. Madden, Paul, 1982. "Catastrophic Walrasian Equilibrium from the Non-Walrasian Viewpoint: A Three-Good Macroeconomic Example," Review of Economic Studies, Blackwell Publishing, vol. 49(4), pages 661-67, October. [Downloadable!] (restricted)
  20. Debreu, Gerard, 1972. "Smooth Preferences," Econometrica, Econometric Society, vol. 40(4), pages 603-15, July. [Downloadable!] (restricted)
  21. CITANNA, Alessandro & POLEMARCHAKIS, Herakles M. & TIRELLI, Mario, 2001. "The taxation of trades in assets," CORE Discussion Papers 2001017, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE). [Downloadable!]
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  22. Barro, Robert J & Grossman, Herschel I, 1971. "A General Disequilibrium Model of Income and Employment," American Economic Review, American Economic Association, vol. 61(1), pages 82-93, March. [Downloadable!] (restricted)
  23. 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. [Downloadable!] (restricted)
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  24. Nguyen, Trien T. & Whalley, John, 1986. "Equilibrium under price controls with endogenous transactions costs," Journal of Economic Theory, Elsevier, vol. 39(2), pages 290-300, August. [Downloadable!] (restricted)
  25. Herakles Polemarchakis, 2001. "The taxation of trades in assests," Working Papers 2001-21, Brown University, Department of Economics. [Downloadable!]
  26. Atsushi Kajii & Antonio Villanacci & Alessandro Citanna, 1998. "Constrained suboptimality in incomplete markets: a general approach and two applications," Economic Theory, Springer, vol. 11(3), pages 495-521. [Downloadable!] (restricted)
  27. Dreze, Jacques H, 1975. "Existence of an Exchange Equilibrium under Price Rigidities," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 16(2), pages 301-20, June. [Downloadable!] (restricted)
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(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Herings,P. Jean-Jacques & Konovalov,Alexander, 2000. "Constrained Suboptimality when Prices Are Non-competitive," Research Memoranda 012, Maastricht : METEOR, Maastricht Research School of Economics of Technology and Organization. [Downloadable!]
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  2. Herings, P.J.J. & Laan, G. van der & Talman, D., 2001. "Quantity constrained equilibria," Discussion Paper 93, Tilburg University, Center for Economic Research. [Downloadable!]
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  3. Gaël Giraud, 2004. "Walrasian non-tâtonnement with incomplete and imperfect markets," Cahiers de la Maison des Sciences Economiques b04119, Université Panthéon-Sorbonne (Paris 1). [Downloadable!]
  4. P. J. J. Herings & H. M. Polemarchakis, 2003. "Pareto Improving Price Regulation When the Asset Market is Incomplete," Discussion Papers 03-20, University of Copenhagen. Department of Economics. [Downloadable!]
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  5. Raymond Wladimir & Mohnen Pierre & Palm Franz & Schim van der Loeff Sybrand, 2009. "Innovative Sales, R&D and Total Innovation Expenditures: Panel Evidence on their Dynamics," Research Memoranda 028, Maastricht : METEOR, Maastricht Research School of Economics of Technology and Organization. [Downloadable!]
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  6. Jacques H., DREZE & Jean-Jacques, HERINGS, 2007. "Kinky perceived demand curves and Keynes-Negishi equilibria," Discussion Papers (ECON - Département des Sciences Economiques) 2007037, Université catholique de Louvain, Département des Sciences Economiques. [Downloadable!]
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  7. Herings, P.J.J. & Laan, G. van der & Talman, A.J.J., 2004. "Equilibria with coordination failures," Discussion Paper 107, Tilburg University, Center for Economic Research. [Downloadable!]
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  8. CITANNA, Alessandro & POLEMARCHAKIS, Heracles M. & TIRELLI, M., 2000. "The Taxation of Trades in assets," Les Cahiers de Recherche 721, HEC Paris. [Downloadable!]
    Other versions:
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