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Purchase frequency, sample selection, and price sensitivity: The heavy-user bias

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Abstract

We study the relationship between purchase frequency and volume and choice behavior as summarized by brand preferences and price sensitivity. Our most striking finding is that consumers with high purchase frequency or high purchase volume are much more price sensitive and have more sharply defined preferences for national brands than consumers with low frequency or low volume of purchase. In much of the choice literature, analysis is confined to households that have on average a larger number of purchases than is representative of the ERIM panel. Our findings suggest that some caution should be exercised in interpreting studies that employ purchase-frequency or purchase-number sample inclusion rules. Our findings also support an information theoretic point of view in which households become more price sensitive via costly acquisition of information about the distribution of prices.

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Authors and Affiliations

  1. Graduate School of Industrial Administration, Carnegie-Mellon University, 15213-3890, Pittsburgh, PA

    Byung-Do Kim

  2. Graduate School of Business, University of Chicago, USA

    Peter E. Rossi

Authors
  1. Byung-Do Kim
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  2. Peter E. Rossi
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Additional information

We acknowledge helpful comments from Greg Allenby and Bob Blattberg. Support from the Micro-Marketing Project at the Graduate School of Business at the University of Chicago is gratefully acknowledged. Byung-Do Kim is the corresponding author.

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Kim, BD., Rossi, P.E. Purchase frequency, sample selection, and price sensitivity: The heavy-user bias. Marketing Letters 5, 57–67 (1994). https://doi.org/10.1007/BF00993958

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