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Journal article

Multi-category competition and market power: a model of supermarket pricing

Abstract:
In many competitive settings consumers buy multiple product categories, and some prefer to use a single firm, generating complementary cross-category price effects. To study pricing in supermarkets, an organizational form where these effects are internalized, we develop a multi-category multi-seller demand model and estimate it using UK consumer data. This class of model is used widely in theoretical analysis of retail pricing. We quantify cross-category pricing effects and find that internalizing them substantially reduces market power. We find that consumers inclined to one-stop (rather than multi-stop) shopping have a greater pro-competitive impact because they generate relatively large crosscategory effects.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1257/aer.20160055

Authors


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Institution:
University of Oxford
Oxford college:
Keble College
Role:
Author


Publisher:
American Economic Association
Journal:
American Economic Review More from this journal
Volume:
107
Issue:
8
Pages:
2308-51
Publication date:
2017-08-01
Acceptance date:
2017-03-14
DOI:
EISSN:
1532-5059
ISSN:
0002-8282


Pubs id:
pubs:686351
UUID:
uuid:8418fb11-54d1-4cbc-b813-1189fab39aad
Local pid:
pubs:686351
Source identifiers:
686351
Deposit date:
2017-03-19

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