Tracking the Invisible Hand: Convergence of Double Auctions to Competitive Equilibrium
AbstractEconomics is the science of want and scarcity. We show that want and scarcity, operating within a simple exchange institution (double auction), can be sufficient for an economy consisting of multiple inter-related markets to attain competitive equilibrium (CE). We generalize Gode and Sunderâs (1993a,b) single-market finding to multi-market economies, and explore the role of the scarcity constraint in convergence of economies to CE. When the scarcity constraint is relaxed by allowing arbitrageurs in middle markets to enter speculative trades, prices still converge to CE, but allocative efficiency of the economy declines. Optimization by individual agents, often used to derive competitive equilibria, is unnecessary for an actual economy to approximately attain such equilibria. From the failure of humans to optimize in complex tasks, one need not conclude that the equilibria derived from the competitive model are descriptively irrelevant. We show that even in complex economic systems which are highly inefficient, such equilibria can be attained under a range of surprisingly weak assumptions about agent behavior.
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Bibliographic InfoPaper provided by Carnegie Mellon University, Tepper School of Business in its series GSIA Working Papers with number 1994-11.
Length: 22 pages
Date of creation: 1994
Date of revision:
Contact details of provider:
Postal: Tepper School of Business, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213-3890
Web page: http://www.tepper.cmu.edu/
Other versions of this item:
- Antoni Bosch-Domenech & Shyam Sunder, 2000. "Tracking the Invisible Hand: Convergence of Double Auctions to Competitive Equilibrium," Computational Economics, Society for Computational Economics, vol. 16(3), pages 257-284, December.
- Shyam NMI Sunder & Antoni Bosch-Domènech, 2001. "Tracking the Invisible Hand: Convergence of Double Auctions to Competitive Equilibrium," Yale School of Management Working Papers ysm204, Yale School of Management.
- Antoni Bosch-Domènech & Shyam Sunder, 1996. "Tracking the invisible hand: Convergence of double auctions to competitive equilibrium," Economics Working Papers 91, Department of Economics and Business, Universitat Pompeu Fabra.
- C92 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Group Behavior
- D40 - Microeconomics - - Market Structure and Pricing - - - General
- D44 - Microeconomics - - Market Structure and Pricing - - - Auctions
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.:
- Theodore W. Schultz, 1962. "Reflections on Investment in Man," Journal of Political Economy, University of Chicago Press, vol. 70, pages 1.
- Rothschild, Emma, 1994. "Adam Smith and the Invisible Hand," American Economic Review, American Economic Association, vol. 84(2), pages 319-22, May.
- Smith, Vernon L, 1991. "Rational Choice: The Contrast between Economics and Psychology," Journal of Political Economy, University of Chicago Press, vol. 99(4), pages 877-97, August.
- Sunder, S., 1992. "Lower Bounds for Efficiency of Surplus Extraction in Double Auctions," GSIA Working Papers 1992-17, Carnegie Mellon University, Tepper School of Business.
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