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Theorems on the core of an economy with infinitely many commodities and consumers

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  • Evren, Özgür
  • Hüsseinov, Farhad

Abstract

It is known that the classical theorems of Grodal [Grodal, B., 1972. A second remark on the core of an atomless economy. Econometrica 40, 581-583] and Schmeidler [Schmeidler, D., 1972. A remark on the core of an atomless economy. Econometrica 40, 579-580] on the veto power of small coalitions in finite dimensional, atomless economies can be extended (with some minor modifications) to include the case of countably many commodities. This paper presents a further extension of these results to include the case of uncountably many commodities. We also extend Vind's [Vind, K., 1972. A third remark on the core of an atomless economy. Econometrica 40, 585-586] classical theorem on the veto power of big coalitions in finite dimensional, atomless economies to include the case of an arbitrary number of commodities. In another result, we show that in the coalitional economy defined by an atomless individualistic model, core-Walras equivalence holds even if the commodity space is non-separable. The above-mentioned results are also valid for a differential information economy with a finite state space. We also extend Kannai's [Kannai, Y., 1970. Continuity properties of the core of a market. Econometrica 38, 791-815] theorem on the continuity of the core of a finite dimensional, large economy to include the case of an arbitrary number of commodities. All of our results are applications of a lemma, that we prove here, about the set of aggregate alternatives available to a coalition. Throughout the paper, the commodity space is assumed to be an ordered Banach space which has an interior point in its positive cone.

Suggested Citation

  • Evren, Özgür & Hüsseinov, Farhad, 2008. "Theorems on the core of an economy with infinitely many commodities and consumers," Journal of Mathematical Economics, Elsevier, vol. 44(11), pages 1180-1196, December.
  • Handle: RePEc:eee:mateco:v:44:y:2008:i:11:p:1180-1196
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    References listed on IDEAS

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    1. Vind, Karl, 1972. "A Third Remark on the Core of an Atomless Economy," Econometrica, Econometric Society, vol. 40(3), pages 585-586, May.
    2. Ezra Einy & Ori Haimanko & Diego Moreno & Benyamin Shitovitz, 2005. "On the continuity of equilibrium and core correspondences in economies with differential information," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 26(4), pages 793-812, November.
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    Citations

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    Cited by:

    1. Bhowmik, Anuj & Cao, Jiling, 2012. "Blocking efficiency in an economy with asymmetric information," Journal of Mathematical Economics, Elsevier, vol. 48(6), pages 396-403.
    2. Achille Basile & Maria Gabriella Graziano & Ciro Tarantino, 2016. "Coalitional Fairness with Participation Rates," CSEF Working Papers 442, Centre for Studies in Economics and Finance (CSEF), University of Naples, Italy.
    3. Anuj Bhowmik & Jiling Cao, 2013. "On the core and Walrasian expectations equilibrium in infinite dimensional commodity spaces," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 53(3), pages 537-560, August.
    4. Herves-Beloso, Carlos & Meo, Claudia & Moreno Garcia, Emma, 2011. "On core solutions in economies with asymmetric information," MPRA Paper 30258, University Library of Munich, Germany, revised 12 Apr 2011.
    5. Bhowmik, Anuj & Graziano, Maria Gabriella, 2015. "On Vind’s theorem for an economy with atoms and infinitely many commodities," Journal of Mathematical Economics, Elsevier, vol. 56(C), pages 26-36.
    6. Bhowmik, Anuj, 2013. "Edgeworth equilibria: separable and non-separable commodity spaces," MPRA Paper 46796, University Library of Munich, Germany.
    7. Javier Hervés-Estévez & Emma Moreno-García, 2015. "On restricted bargaining sets," International Journal of Game Theory, Springer;Game Theory Society, vol. 44(3), pages 631-645, August.
    8. M. Ali Khan & Nobusumi Sagara, 2012. "Expected Maharam-Types and Lyapunov's Theorem for Vector Measures on Banach Spaces," Economics Working Paper Archive 593, The Johns Hopkins University,Department of Economics.
    9. Pesce, Marialaura, 2014. "The veto mechanism in atomic differential information economies," Journal of Mathematical Economics, Elsevier, vol. 53(C), pages 33-45.
    10. Pesce, Marialaura, 2014. "The veto mechanism in atomic differential information economies," Journal of Mathematical Economics, Elsevier, vol. 53(C), pages 33-45.
    11. Bhowmik, Anuj, 2014. "Coalitional Fairness: The Case of Exact Feasibility with Asymmetric Information," MPRA Paper 52788, University Library of Munich, Germany.
    12. Carlos Hervés-Beloso & Claudia Meo & Emma Moreno-García, 2014. "Information and size of coalitions," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 55(3), pages 545-563, April.
    13. repec:eee:mateco:v:74:y:2018:i:c:p:128-138 is not listed on IDEAS
    14. Francesca Centrone & Anna Martellotti, 2016. "Coalitional extreme desirability in finitely additive exchange economies," Economic Theory Bulletin, Springer;Society for the Advancement of Economic Theory (SAET), vol. 4(1), pages 17-34, April.
    15. Bhowmik, Anuj & Cao, Jiling, 2011. "Infinite dimensional mixed economies with asymmetric information," MPRA Paper 35618, University Library of Munich, Germany.
    16. Anuj Bhowmik, 2015. "Core and coalitional fairness: the case of information sharing rules," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 60(3), pages 461-494, November.
    17. Bhowmik, Anuj & Cao, Jiling, 2013. "Robust efficiency in mixed economies with asymmetric information," Journal of Mathematical Economics, Elsevier, vol. 49(1), pages 49-57.
    18. repec:kap:jeczfn:v:123:y:2018:i:2:d:10.1007_s00712-017-0543-7 is not listed on IDEAS
    19. Bhowmik, Anuj & Centrone, Francesca & Martellotti, Anna, 2016. "Coalitional Extreme Desirability in Finitely Additive Economies with Asymmetric Information," MPRA Paper 71084, University Library of Munich, Germany.
    20. Hervés-Estévez, Javier & Moreno-García, Emma, 2012. "Some remarks on restricted bargaining sets," MPRA Paper 39385, University Library of Munich, Germany, revised 10 Jun 2012.

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