1. Allain, Marie-Laure, and Claire Chambolle, "Retailer's Buying Power in France," Institut National de la Recherche Agronomique Working Paper, 1999.
2. Becker, Gary, The Economics of Discrimination (Chicago, IL: University of Chicago Press, 1957).
3. Bertrand, Marianne, Esther Duflo, and Sendhil Mullainathan, "How Much Should we Trust Differences-in-Differences Estimates?" mimeo, University of Chicago Graduate School of Business, 2001.
4. Bertrand, Marianne, Pierre Biscourp, Severine Haller, and Francis Kramarz, "Dispersion des Prix de Vente au Detail, Heterogeneite des Formes de Vente et Structure de la Concurrence: Une Analyse Empirique sur Donnees Individuelles," mimeo, CREST, 2000.