This study compares the growth of cooperatives with noncooperative. counterparts in seven marketing and distribution industries. Commodities involved in the study are fruits and vegetables, milk and other dairy products, poultry and eggs, grain, feed, fertilizer, and petroleum. The cooperatives marketing milk and other dairy products and those distributing fertilizer and petroleum increased their sales and gained a significant share of the farm market since 1950, while other cooperatives marketing commodities changed very little during the period.