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On behavioral complementarity and its implications

Author

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  • Chambers, Christopher P.
  • Echenique, Federico
  • Shmaya, Eran

Abstract

We study the behavioral definition of complementary goods: if the price of one good increases, demand for a complementary good must decrease. We obtain its full implications for observable demand behavior (its testable implications), and for the consumer's underlying preferences. We characterize those data sets which can be generated by rational preferences exhibiting complementarities. The class of preferences that generate demand complements has Leontief and Cobb-Douglas as its as extreme members.

Suggested Citation

  • Chambers, Christopher P. & Echenique, Federico & Shmaya, Eran, 2010. "On behavioral complementarity and its implications," Journal of Economic Theory, Elsevier, vol. 145(6), pages 2332-2355, November.
  • Handle: RePEc:eee:jetheo:v:145:y:2010:i:6:p:2332-2355
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    References listed on IDEAS

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    Cited by:

    1. Cherchye, Laurens & Demuynck, Thomas & De Rock, Bram, 2018. "Normality of demand in a two-goods setting," Journal of Economic Theory, Elsevier, vol. 173(C), pages 361-382.

    More about this item

    Keywords

    Revealed preference Gross complements Demand theory;

    JEL classification:

    • D11 - Microeconomics - - Household Behavior - - - Consumer Economics: Theory
    • D12 - Microeconomics - - Household Behavior - - - Consumer Economics: Empirical Analysis

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