Replication data for: Multi-category Competition and Market Power: A Model of Supermarket Pricing

Principal Investigator(s):  View help for Principal Investigator(s) Øyvind Thomassen; Howard Smith; Stephan Seiler; Pasquale Schiraldi

Version:  View help for Version V1

Name File Type Size Last Modified
LICENSE.txt text/plain 14.6 KB 10/12/2019 01:42:AM
QP_nonneg.m text/plain 1.8 KB 10/12/2019 01:42:AM
Readme_MultiCategoryCompetition.pdf application/pdf 26.2 KB 10/12/2019 01:42:AM
TSS_Qfirmcat.m text/plain 5.2 KB 10/12/2019 01:42:AM
TSS_W_second_stage.m text/plain 1.9 KB 10/12/2019 01:42:AM
TSS_acov.m text/plain 1.8 KB 10/12/2019 01:42:AM
TSS_counterfactual_exog_dist.m text/plain 5.9 KB 10/12/2019 01:42:AM
TSS_distance_histogram.m text/plain 1.7 KB 10/12/2019 01:42:AM
TSS_gmm.m text/plain 380 bytes 10/12/2019 01:42:AM
TSS_input.m text/x-fortran 46.6 KB 10/12/2019 01:42:AM

Project Citation: 

Thomassen, Øyvind, Smith, Howard, Seiler, Stephan, and Schiraldi, Pasquale. Replication data for: Multi-category Competition and Market Power: A Model of Supermarket Pricing. Nashville, TN: American Economic Association [publisher], 2017. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2019-10-12. https://doi.org/10.3886/E113116V1

Project Description

Summary:  View help for Summary 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 cross-category effects.

Scope of Project

Subject Terms:  View help for Subject Terms Demand modelling
JEL Classification:  View help for JEL Classification
      D12 Consumer Economics: Empirical Analysis
      L11 Production, Pricing, and Market Structure; Size Distribution of Firms
      L13 Oligopoly and Other Imperfect Markets
      L81 Retail and Wholesale Trade; e-Commerce
Geographic Coverage:  View help for Geographic Coverage United Kingdom
Time Period(s):  View help for Time Period(s) 11/2002 – 10/2005
Universe:  View help for Universe Households in the UK
Data Type(s):  View help for Data Type(s) survey data; observational data

Methodology

Data Source:  View help for Data Source Kantar Superpanel
Unit(s) of Observation:  View help for Unit(s) of Observation Households,

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Published Versions

V1 [2019-10-12]

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DDI 2.5

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