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Price and Brand Competition between Differentiated Retailers: A Structural Econometric Model

  • Dubois, Pierre
  • Jodar-Rosell, Sandra

We develop a model of competition between retailer chains with a structural estimation of the demand and supply in the supermarket industry in France. In the model, supermarkets compete in price and brand offer over all food products to attract consumers, in particular through the share of private labels versus national brands across all their products. Private labels can serve as a differentiation tool for the retailers in order to soften price competition. They may affect the marginal costs of all products for the retailer because of eventual quality differences and also by helping retailers to obtain better conditions from their manufacturers. Differentiation is taken into account by estimating a discrete-continuous choice model of demand where outlet choice and total expenditures are determined endogenously. On the supply side, we consider a simultaneous competition game in brand offer and price between retailers to identify marginal costs. After estimation by simulated maximum likelihood, the structural estimates allow to simulate the effect on the equilibrium behavior of retailer chains of a demand shock through an increase in transportation costs for consumers and a merger between two retailer chains.

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Paper provided by Institut d'Économie Industrielle (IDEI), Toulouse in its series IDEI Working Papers with number 604.

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Date of creation: Apr 2010
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Handle: RePEc:ide:wpaper:22617
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  1. Marie-Laure Allain & Claire Chambolle, 2004. "Loss-leaders Banning Laws as Vertical Restraints," Working Papers 2004-19, Centre de Recherche en Economie et Statistique.
  2. David Besanko & Sachin Gupta & Dipak Jain, 1998. "Logit Demand Estimation Under Competitive Pricing Behavior: An Equilibrium Framework," Management Science, INFORMS, vol. 44(11-Part-1), pages 1533-1547, November.
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  11. Bonnet, Céline & Dubois, Pierre, 2008. "Inference on Vertical Contracts between Manufacturers and Retailers Allowing for Non Linear Pricing and Resale Price Maintenance," CEPR Discussion Papers 6918, C.E.P.R. Discussion Papers.
  12. Christophe Bontemps & Valérie Orozco & Vincent Réquillart, 2008. "Private Labels, National Brands and Food Prices," Review of Industrial Organization, Springer, vol. 33(1), pages 1-22, August.
  13. Patrick REY & Thibaud VERGE, 2009. "Resale Price Maintenance and Interlocking Relationships," Working Papers 2009-11, Centre de Recherche en Economie et Statistique.
  14. Mills, David E, 1995. "Why Retailers Sell Private Labels," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 4(3), pages 509-28, Fall.
  15. Howard Smith, 2004. "Supermarket Choice and Supermarket Competition in Market�Equilibrium," Review of Economic Studies, Wiley Blackwell, vol. 71(1), pages 235-263, 01.
  16. Armstrong, Mark, 2006. "Price discrimination," MPRA Paper 4693, University Library of Munich, Germany.
  17. André Bonfrer & Pradeep K. Chintagunta, 2004. "Store Brands: Who Buys Them and What Happens to Retail Prices When They Are Introduced?," Review of Industrial Organization, Springer, vol. 24(2), pages 195-218, 03.
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