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Observational Learning and Demand for Search Goods

Author

Listed:
  • Kenneth Hendricks
  • Alan Sorensen
  • Thomas Wiseman

Abstract

We develop a model of herds in which consumers observe only the aggregate purchase history, not the complete ordered history of search actions. We show that the purchasing information changes the conditions under which herds can occur for both low- and high-quality products. Inferior products are certain to be ignored; high quality products may be ignored, but complete learning may also occur. We obtain closed form solutions for the probabilities of these events and conduct comparative statics. We test the model's predictions using data from an online music market created by Salganik, Dodds, and Watts (2006). (JEL D11, D12, L82)

Suggested Citation

  • Kenneth Hendricks & Alan Sorensen & Thomas Wiseman, 2012. "Observational Learning and Demand for Search Goods," American Economic Journal: Microeconomics, American Economic Association, vol. 4(1), pages 1-31, February.
    • Handle: RePEc:aea:aejmic:v:4:y:2012:i:1:p:1-31
    Note: DOI: 10.1257/mic.4.1.1
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    More about this item

    JEL classification:

    • D11 - Microeconomics - - Household Behavior - - - Consumer Economics: Theory
    • D12 - Microeconomics - - Household Behavior - - - Consumer Economics: Empirical Analysis
    • L82 - Industrial Organization - - Industry Studies: Services - - - Entertainment; Media

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    1. Observational Learning and Demand for Search Goods (AEJ:MI 2012) in ReplicationWiki

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