Competition effects of supermarket services

Alessandro Bonanno, Rigoberto A. Lopez

Research output: Contribution to journalArticlepeer-review

37 Scopus citations


This article investigates the competition effects of supermarket services using fluid milk as a case study. A simultaneous equation model for services and price competition is estimated with scanner data from fifteen supermarket chains using two alternative measures of services, namely store size and principal components of in-store services. Empirical results show that increasing services results in economies of scope, greater supermarket chain-level demand, lower price elasticity of demand, and enhanced market power, leading to higher milk prices and quantity sold. We conclude that, as result of service competition, supermarkets differentiate themselves from competitors and successfully attract less price-sensitive consumers.

Original languageEnglish (US)
Pages (from-to)555-568
Number of pages14
JournalAmerican Journal of Agricultural Economics
Issue number3
StatePublished - 2009

All Science Journal Classification (ASJC) codes

  • Agricultural and Biological Sciences (miscellaneous)
  • Economics and Econometrics


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