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Incomplete risk sharing arrangements and the value of information

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  • Bernhard Eckwert
  • Itzhak Zilcha

Abstract

The paper constructs a theoretical framework in which the value of information in general equilibrium is determined by the interaction of two opposing mechanisms: first, more information about future random events leads to better individual decisions and, therefore, higher welfare. This is the ‘Blackwell effect’ where information has positive value. Second, more information in advance of trading limits the risk sharing opportunities in the economy and, therefore, reduces welfare. This is the ‘Hirshleifer effect’ where information has negative value. We demonstrate that in an economy with production information has positive value if the information refers to non-tradable risks; hence, such information does not destroy the Blackwell theorem. Information which refers to tradable risks may invalidate the Blackwell theorem if the consumers are highly risk averse. The critical level of relative risk aversion beyond which the value of information becomes negative is less than 0.5. Copyright Springer-Verlag Berlin Heidelberg 2003

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Bibliographic Info

Article provided by Springer in its journal Economic Theory.

Volume (Year): 21 (2003)
Issue (Month): 1 (01)
Pages: 43-58

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Handle: RePEc:spr:joecth:v:21:y:2003:i:1:p:43-58

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Related research

Keywords: Keywords and Phrases: Value of information; General equilibrium; Risk sharing markets.; JEL Classification Numbers: D8; D51; D52.;

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Cited by:
  1. Broll, Udo & Eckwert, Bernhard, 2009. "Modelling information and hedging: the exporting firm," Dresden Discussion Paper Series in Economics 02/09, Dresden University of Technology, Faculty of Business and Economics, Department of Economics.
  2. Wong, Kit Pong, 2006. "Foreign direct investment and forward hedging," Journal of Multinational Financial Management, Elsevier, vol. 16(5), pages 459-474, December.
  3. Juan Carlos Hatchondo, 2005. "The value of information with heterogeneous agents and partially revealing prices," Working Paper 05-06, Federal Reserve Bank of Richmond.
  4. Edward E. Schlee, 2001. "The Value of Information in Efficient Risk-Sharing Arrangements," American Economic Review, American Economic Association, vol. 91(3), pages 509-524, June.
  5. Broll, Udo & Eckwert, Bernhard & Wong, Kit Pong, 2010. "International trade and the role of market transparency," Dresden Discussion Paper Series in Economics 08/10, Dresden University of Technology, Faculty of Business and Economics, Department of Economics.
  6. Bieta, Volker & Broll, Udo & Siebe, Wilfried, 2008. "The banking firm: the role of signaling with collaterals," Dresden Discussion Paper Series in Economics 04/08, Dresden University of Technology, Faculty of Business and Economics, Department of Economics.
  7. Broll, Udo & Eckwert, Bernhard, 2004. "Transparency in the Interbank Market and the Volume of Bank Intermediated Loans," Dresden Discussion Paper Series in Economics 10/04, Dresden University of Technology, Faculty of Business and Economics, Department of Economics.
  8. Broll, Udo & Eckwert, Bernhard & Eickhoff, Andreas, 2012. "Financial intermediation and endogenous risk in the banking sector," Economic Modelling, Elsevier, vol. 29(5), pages 1618-1622.
  9. Broll, Udo & Eckwert, Bernhard, 2007. "The Competitive Firm Under Price Uncertainty: The Role of Information and Hedging," Dresden Discussion Paper Series in Economics 12/07, Dresden University of Technology, Faculty of Business and Economics, Department of Economics.
  10. Broll, Udo & Eckwert, Bernhard, 2003. "Transparency in the foreign exchange market and the volume of international trade," Dresden Discussion Paper Series in Economics 14/03, Dresden University of Technology, Faculty of Business and Economics, Department of Economics.
  11. Campbell, Colin M., 2004. "Blackwell's ordering and public information," Journal of Economic Theory, Elsevier, vol. 114(2), pages 179-197, February.
  12. Hermelingmeier, Christian, 2010. "The competitive firm and the role of information about uncertain factor prices," Economic Modelling, Elsevier, vol. 27(2), pages 547-552, March.
  13. Wong, Kit Pong, 2007. "Operational and financial hedging for exporting firms," International Review of Economics & Finance, Elsevier, vol. 16(4), pages 459-470.
  14. Broll, Udo & Eckwert, Bernhard, 2011. "Information value, export and hedging," Dresden Discussion Paper Series in Economics 03/11, Dresden University of Technology, Faculty of Business and Economics, Department of Economics.
  15. Drees, Burkhard & Eckwert, Bernhard, 2010. "Implications of more precise information for technological development and economic welfare," Journal of Economic Dynamics and Control, Elsevier, vol. 34(2), pages 266-279, February.
  16. Sanchirico, James, 2004. "A Social Scientist's Perspective on the Potential Benefits of the Census of Marine Life," Discussion Papers dp-04-23-rev, Resources For the Future.
  17. Krebs, Tom, 2005. "Fundamentals, information, and international capital flows: A welfare analysis," European Economic Review, Elsevier, vol. 49(3), pages 579-598, April.
  18. Broll, Udo & Eckwert, Bernhard, 2009. "Modelling information and hedging: The exporting firm," Economic Modelling, Elsevier, vol. 26(5), pages 974-977, September.
  19. Colin Campbell, 2004. "Implementation and orderings of public information," Review of Economic Design, Springer, vol. 9(1), pages 43-57, December.

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