We study the grocery industry in Washington, DC, during the Great Depression using data from the 1929 Census of Distribution, a 1929-1930 survey by the Federal Trade Commission, and a 1935 business directory. We first document the differences between chains and independents in the Washington,...

We analyze the effect of Wal-Mart's entry into the grocery market using a unique store-level price panel data set. We use OLS and two IV specifications to estimate the effect of Wal-Mart's entry on competitors' prices of 24 grocery items across several categories. Wal-Mart's price advantage over...