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American Economic Review Vol. 107 No. 3 2017

Unplanned Purchases and Retail Competition

Justin P. Johnson

Samuel Curtis Johnson Graduate School of Management, Cornell University, 379 Sage Hall, Ithaca, NY 14853 (e-mail: )

open access

Abstract

I propose a framework in which asymmetric multiproduct retailers compete for one-stop shoppers who have biased beliefs about their future purchase probabilities (and so make unplanned purchases). One firm carries a full portfolio of products while the other carries an incomplete but endogenous one. Using this framework, I examine the phenomenon of loss leading, the optimal product portfolio of the smaller firm, and the effects of banning loss leading. Among other results, I show that there is a nonpredatory (and possibly procompetitive) justification for the observation that such larger firms may charge below cost on the core product lines of their smaller rivals.

DOI
10.1257/aer.20140605
Volume
107
Issue
3
Pages
931-965
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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