The investment in cotton showed fewer long-term results than the investment in bananas. Cotton showed some promise in 1929, but its price fell following the collapse in the world market. Nearly 1,400 tons in 1929 exports shrank to about 400 tons by 1937. During the trust period, there were years of modest success; in 1952, for example, about 1,000 tons of cotton were exported. There was however, no consistent growth. In 1953 exports dropped by two-thirds. Two reasons are given for cotton's failure as an export crop: an unstable world market and the lack of Somali wage labor for cotton harvesting. Because of the labor scarcity, Italian concessionaires worked out coparticipation contracts with Somali farmers; the Italians received sole purchasing rights to the crop in return for providing seed, cash advances, and technical support.