The cooperative transformation of agriculture was a process in which the individual economy was gradually transformed into a collective economy through such forms as 1) mutual-aid teams, 2) elementary producers' cooperatives and 3) advanced producers' cooperatives. After the agrarian reform had been completed in the rural areas in the early 1950s, many peasants formed seasonal and year-round mutual-aid teams for cooperation in production. In 1953 the Central Committee of the CPC issued the "Resolution on Mutual Aid and Cooperation in Agricultural Production" and the "Resolution on Developing Agricultural Producers' Cooperatives". It also included in its general line for the transition period the task of gradually realizing the socialist transformation of agriculture. As a result, elementary agricultural producers' cooperatives, in which land was pooled as shares and management was unified, were formed throughout the vast rural areas. In July 1955 Mao Zedong made the report "On the Cooperative Transformation of Agriculture", and the following October the CPC Central Committee adopted a resolution on the same subject. Thereafter the agricultural cooperative movement expanded rapidly. By the end of 1956, the socialist transformation of agriculture was basically completed.