Between 1997 and 2000, the share of grocery store sales by the largest four firms jumped 52 percent
![Between 1997 and 2000, the share of grocery store sales by the largest four firms jumped 52 percent](/webdocs/charts/59105/finding_kaufman_fig01_768px.gif?v=1938.1)
Between 1997 and 2000, the share of grocery store sales by the largest four firms jumped 52 percent
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