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The value of information with heterogeneous agents and partially revealing prices

  • Juan Hatchondo

This paper studies how the arrival of more precise information affects welfare in an economy with incomplete and differential information. We consider a single period, pure exchange economy with aggregate uncertainty in which agents show different attitudes towards risk: wealthy individuals are 'de facto' less risk averse than poor individuals. The first ones can then partially insure the last ones, allowing for mutual gains from trade. Agents ignore the actual probability distribution over the states. Instead, they learn from the market price and private signals, which in fact accounts for the presence of heterogeneous beliefs. In equilibrium, the dispersion in beliefs introduces an adverse effect: risk-taking agents are more pessimistic than the rest. This limits the possibilities to share risks and has a negative impact on welfare. The arrival of more precise information has therefore a double effect: it weakens the adverse effect on trade (as risk-taking agents become more optimistic, they offer more insurance) at the same time that it strengthens the Hirshleifer effect (agents are no longer able to insure against news that have already arrived). The first effect fosters and the second one discourages risk-sharing trades. The paper discusses in detail a case where the positive effect on trade offsets the negative effect. This lets us conclude that in an economy with partial information, agents' welfare may increase upon the receipt of more precise information. Even though the result looks intuitive, most of the previous literature has focused on the case with homogeneous beliefs. In such a framework, only the Hirshleifer effect is at work, and thus better information typically leads to a decrease in welfare

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Paper provided by Econometric Society in its series Econometric Society 2004 North American Summer Meetings with number 175.

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Date of creation: 11 Aug 2004
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Handle: RePEc:ecm:nasm04:175
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  1. Marin, Jose M & Rahi, Rohit, 2000. "Information Revelation and Market Incompleteness," Review of Economic Studies, Wiley Blackwell, vol. 67(3), pages 563-79, July.
  2. Rohit Rahi & Piero Gottardi, 2001. "Efficiency properties of rational expectations equilibria with asymmetric information," LSE Research Online Documents on Economics 25059, London School of Economics and Political Science, LSE Library.
  3. Alessandro Citanna & Antonio Villanacci, . "Incomplete markets, allocative efficiency and the information revealed by prices," GSIA Working Papers 10, Carnegie Mellon University, Tepper School of Business.
  4. Marshall, John M, 1974. "Private Incentives and Public Information," American Economic Review, American Economic Association, vol. 64(3), pages 373-90, June.
  5. Hirshleifer, Jack, 1971. "The Private and Social Value of Information and the Reward to Inventive Activity," American Economic Review, American Economic Association, vol. 61(4), pages 561-74, September.
  6. Burkhard Drees & Bernhard Eckwert, 2003. "Welfare Effects of Transparency in Foreign Exchange Markets: the Role of Hedging Opportunities," Review of International Economics, Wiley Blackwell, vol. 11(3), pages 453-463, 08.
  7. Bhattacharya, U. & Spiegel, M., 1989. "Insiders, Outsiders And Market Breakdowns," Papers fb-_89-20, Columbia - Graduate School of Business.
  8. 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.
  9. Ausubel, Lawrence M., 1990. "Partially-revealing rational expectations equilibrium in a competitive economy," Journal of Economic Theory, Elsevier, vol. 50(1), pages 93-126, February.
  10. Hellwig, Martin F., 1980. "On the aggregation of information in competitive markets," Journal of Economic Theory, Elsevier, vol. 22(3), pages 477-498, June.
  11. Jonathan B. Berk, 1997. "The acquisition of information in a dynamic market (*)," Economic Theory, Springer, vol. 9(3), pages 441-451.
  12. Sanford J Grossman & Joseph E Stiglitz, 1997. "On the Impossibility of Informationally Efficient Markets," Levine's Working Paper Archive 1908, David K. Levine.
  13. Ausubel, Lawrence M, 1990. "Insider Trading in a Rational Expectations Economy," American Economic Review, American Economic Association, vol. 80(5), pages 1022-41, December.
  14. Hakansson, Nils H & Kunkel, J Gregory & Ohlson, James A, 1982. " Sufficient and Necessary Conditions for Information to Have Social Value in Pure Exchange," Journal of Finance, American Finance Association, vol. 37(5), pages 1169-81, December.
  15. Green, Jerry R, 1981. "Value of Information with Sequential Futures Markets," Econometrica, Econometric Society, vol. 49(2), pages 335-58, March.
  16. Martin Schneider & Juan Carlos Hatchondo & Per Krusell, 2005. "A Quantitative Model of Competitive Asset Pricing Under Private Information," 2005 Meeting Papers 464, Society for Economic Dynamics.
  17. Bernhard Eckwert & Itzhak Zilcha, 2003. "Incomplete risk sharing arrangements and the value of information," Economic Theory, Springer, vol. 21(1), pages 43-58, 01.
  18. Bengt Holmstrom & Roger B. Myerson, 1981. "Efficient and Durable Decision Rules with Incomplete Information," Discussion Papers 495, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  19. Rahi, Rohit, 1996. "Adverse Selection and Security Design," Review of Economic Studies, Wiley Blackwell, vol. 63(2), pages 287-300, April.
  20. Diamond, Douglas W. & Verrecchia, Robert E., 1981. "Information aggregation in a noisy rational expectations economy," Journal of Financial Economics, Elsevier, vol. 9(3), pages 221-235, September.
  21. Tom Krebs, 1999. "Information and Efficiency in Financial Market Equilibrium," Working Papers 99-20, Brown University, Department of Economics.
  22. Stephen Morris & Hyun Song Shin, 2002. "Social Value of Public Information," American Economic Review, American Economic Association, vol. 92(5), pages 1521-1534, December.
  23. Dubey, Pradeep & Geanakoplos, John & Shubik, Martin, 1987. "The revelation of information in strategic market games : A critique of rational expectations equilibrium," Journal of Mathematical Economics, Elsevier, vol. 16(2), pages 105-137, April.
  24. Ng, David S., 1975. "Information accuracy and social welfare under homogeneous beliefs," Journal of Financial Economics, Elsevier, vol. 2(1), pages 53-70, March.
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