Demand relations of fresh sweetpotato in the St. Louis and Chicago markets

Abstract

The impacts of unloaded quantity, disposable personal income, retail price index of fresh potatoes (Solanum tuberosum L.), and seasonal monthly variables on sweetpotato (Ipomoea batatas (L.) Lam.] price in the St. Louis and Chicago terminal markets were estimated using a regression analysis technique. These markets can absorb a modest increase in sweetpotato quantity without a decrease in wholesale price, but a significant increase in quantity would decrease wholesale price. Sweetpotato price is higher during October, November, and December than in September; therefore, producers must give attention to marketing sweetpotatoes during these months. Also, increased shipments of sweetpotatoes to these markets should not be considered in anticipation of an increase in disposable income.