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Abstract
The retail value of Thompson Seedless grapes sold in Chicago and New York City increased an average of 73 cents per lug per year between 1964 and 1973. The wholesale and retail margin increased 40 cents per lug per year; rail transportation costs went up 3 cents; harvesting and packing costs rose 9 cents; and grower returns rose 21 cents. Transportation's share of the retail value decreased slightly. Other market shares, including the grower's share, changed little.