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Sunspots, whether they are risk or uncertainty, cannot matter in the static Arrow-Debreu economy

Author

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  • Eisei Ohtaki

    (Graduate School of Economics, Keio University)

Abstract

It is well-known that in the static Arrow-Debreu economy with complete markets, extrinsic uncertainty cannot matter. This paper re-examines this result when agents preferences exhibit aversion to Knightian uncertainty. We then show that extrinsic uncertainty still cannot matter.

Suggested Citation

  • Eisei Ohtaki, 2010. "Sunspots, whether they are risk or uncertainty, cannot matter in the static Arrow-Debreu economy," Economics Bulletin, AccessEcon, vol. 30(2), pages 961-966.
    • Handle: RePEc:ebl:ecbull:eb-09-00817
    as

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    References listed on IDEAS

    as
    1. Chateauneuf, Alain & Dana, Rose-Anne & Tallon, Jean-Marc, 2000. "Optimal risk-sharing rules and equilibria with Choquet-expected-utility," Journal of Mathematical Economics, Elsevier, vol. 34(2), pages 191-214, October.
    2. Cass, David & Shell, Karl, 1983. "Do Sunspots Matter?," Journal of Political Economy, University of Chicago Press, vol. 91(2), pages 193-227, April.
    3. Chateauneuf, Alain & Dana, Rose-Anne & Tallon, Jean-Marc, 2000. "Optimal risk-sharing rules and equilibria with Choquet-expected-utility," Journal of Mathematical Economics, Elsevier, vol. 34(2), pages 191-214, October.
    4. Schmeidler, David, 1989. "Subjective Probability and Expected Utility without Additivity," Econometrica, Econometric Society, vol. 57(3), pages 571-587, May.
    5. Gilboa, Itzhak & Schmeidler, David, 1989. "Maxmin expected utility with non-unique prior," Journal of Mathematical Economics, Elsevier, vol. 18(2), pages 141-153, April.
    6. repec:dau:papers:123456789/5461 is not listed on IDEAS
    7. repec:dau:papers:123456789/5393 is not listed on IDEAS
    8. Nishimura, Kiyohiko G. & Ozaki, Hiroyuki, 2004. "Search and Knightian uncertainty," Journal of Economic Theory, Elsevier, vol. 119(2), pages 299-333, December.
    9. Daniel Ellsberg, 1961. "Risk, Ambiguity, and the Savage Axioms," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 75(4), pages 643-669.
    10. Dow, James & Werlang, Sergio Ribeiro da Costa, 1992. "Uncertainty Aversion, Risk Aversion, and the Optimal Choice of Portfolio," Econometrica, Econometric Society, vol. 60(1), pages 197-204, January.
    11. Epstein, Larry G & Wang, Tan, 1994. "Intertemporal Asset Pricing Under Knightian Uncertainty," Econometrica, Econometric Society, vol. 62(2), pages 283-322, March.
    12. Rose-Anne Dana, 2004. "Ambiguity, uncertainty aversion and equilibrium welfare," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 23(3), pages 569-587, March.
    Full references (including those not matched with items on IDEAS)

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    More about this item

    Keywords

    Extrinsic uncertainty; Knightian uncertainty; Arrow-Debreu economy; Rational expectations equilibrium.;
    All these keywords.

    JEL classification:

    • D5 - Microeconomics - - General Equilibrium and Disequilibrium
    • E2 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment

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