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Stochastic Complementarity

Author

Listed:
  • Paola Manzini

    (University of St. Andrews, and IZA)

  • Marco Mariotti

    (Queen Mary University of London)

  • Levent Ulkti

    (ITAM)

Abstract

Classical definitions of complementarity are based on cross price elasticities, and so they do not apply, for example, when goods are free. This context includes many relevant cases such as online newspapers and public attractions. We look for a complementarity notion that does not rely on price variation and that is: behavioural (based only on observable choice data); and model-free (valid whether the agent is rational or not). We uncover a conflict between properties that complementarity should intuitively possess. We discuss three ways out of the impossibility.

Suggested Citation

  • Paola Manzini & Marco Mariotti & Levent Ulkti, 2015. "Stochastic Complementarity," Working Papers 745, Queen Mary University of London, School of Economics and Finance.
  • Handle: RePEc:qmw:qmwecw:745
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    References listed on IDEAS

    as
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    More about this item

    Keywords

    Complements and substitutes; Correlation; Stochastic choice;

    JEL classification:

    • D0 - Microeconomics - - General

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