Market Power, Survival and Accuracy of Predictions in Financial Markets
In a standard General Equilibrium framework, we consider an agent strategically using her large volume of trade to influence asset prices to increase her consumption. We show that, as in Sandroni (2000) for the competitive case, if markets are dynamically complete and some general conditions on market preferences are met then this agent' long-run consumption will vanish if she makes less accurate predictions than the market, and will maintain her market power otherwise. We thus argue that the Market Selection Hypothesis extends to this situation of market power, in contrast to Alchian (1950) and Friedman (1953) who claimed that this selection was solely driven by the competitiveness of markets.
|Date of creation:||2006|
|Date of revision:|
|Contact details of provider:|| Postal: Maynooth, Co. Kildare|
Web page: http://www.maynoothuniversity.ie/economics-finance-and-accounting
More information through EDIRC
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.:
- Hens, Thorsten & Reimann, Stefan & Vogt, Bodo, 2004. "Nash competitive equilibria and two-period fund separation," Journal of Mathematical Economics, Elsevier, vol. 40(3-4), pages 321-346, June.
- Kevin X. D. Huang & Jan Werner, 2000.
"Implementing Arrow-Debreu Equilibria by Trading Infinitely-Lived Securities,"
Econometric Society World Congress 2000 Contributed Papers
1708, Econometric Society.
- Kevin Huang & Jan Werner, 2004. "Implementing Arrow-Debreu equilibria by trading infinitely-lived securities," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 24(3), pages 603-622, October.
- K. Huang & Z. Liu, . "Implementing Arrow-Debreu equilibria by trading infinitely lived securities," Working Papers 2000-21, Utah State University, Department of Economics.
- Kevin X. D. Huang & Jan Werner, 2002. "Implementing Arrow-Debreu equilibria by trading infinitely-lived securities," Research Working Paper RWP 02-08, Federal Reserve Bank of Kansas City.
- JASKOLD GABSZEWICZ, Jean & VIAL, Jean-Philippe, .
"Oligopoly "à la Cournot" in a general equilibrium analysis,"
CORE Discussion Papers RP
106, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- Jaskold Gabszewicz, Jean & Vial, Jean-Philippe, 1972. "Oligopoly "A la cournot" in a general equilibrium analysis," Journal of Economic Theory, Elsevier, vol. 4(3), pages 381-400, June.
- Kurz, Mordecai, 1994. "On Rational Belief Equilibria," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 4(6), pages 859-76, October.
- Lawrence Blume & David Easley, 2001.
"If You're So Smart, Why Aren't You Rich? Belief Selection in Complete and Incomplete Markets,"
01-06-031, Santa Fe Institute.
- Lawrence Blume & David Easley, 2006. "If You're so Smart, why Aren't You Rich? Belief Selection in Complete and Incomplete Markets," Econometrica, Econometric Society, vol. 74(4), pages 929-966, 07.
- Larry Blume & David Easley, 2001. "If You're So Smart, Why Aren't You Rich? Belief Selection in Complete and Incomplete Markets," Cowles Foundation Discussion Papers 1319, Cowles Foundation for Research in Economics, Yale University.
- Oliver D. Hart, 1979. "Monopolistic Competition in a Large Economy with Differentiated Commodities," Review of Economic Studies, Oxford University Press, vol. 46(1), pages 1-30.
- Blume, Lawrence & Easley, David, 1992. "Evolution and market behavior," Journal of Economic Theory, Elsevier, vol. 58(1), pages 9-40, October.
- Hellwig, Martin F., 1980. "On the aggregation of information in competitive markets," Journal of Economic Theory, Elsevier, vol. 22(3), pages 477-498, June.
When requesting a correction, please mention this item's handle: RePEc:may:mayecw:n1701106. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: ()
If references are entirely missing, you can add them using this form.