Abstract
The structural changes of the agriculture, forestry and fishery in Osaka was studied by the method of interindustry analysis. The weight of their sectors in the regional economy was reduced from 0.8% to 0.2% for 20 years since 1960. Their structure of demand belonged to the so-called intermidiate demand type which has the relatively more intermidiate demand than final demand but the rate of intermediate demand was declining. The self-sufficiency rate of their sectors also continued to decrease. The characteristics of the change in the structure of input were the decrease of the input to self-sectors and the increase of the input to the manufacturing industries and the distribution industries. This trend was considered to be one of the main structural changes in the agriculture, forestry and fishery in urban areas. And the influence over the productive activities in all sectors, which can be estimated by the inverse matrix of the input coefficients had the similar trend. The factors which caused the change of the yield were led by the method of Chenery. As a result, the factors of final demand and export contributed to the increase of the yield, but the factors of technology and import caused to decrease the yield.
