九州大学大学院農学研究院農業資源経済学部門国際農業資源開発・経営経済学講座農業経済学研究室
Laboratory of Agricultural Economics, Division of International Agricultural Resources Economics and Business Administration, Department of Agricultural and Resource Economics, Kyushu University
This paper analyzes empirically the factors influencillg pesticide and fertilizer use, and examines the possibility of reducing widely the application rates of such inputs, using a case study from Kyushu, western Japan. A regression procedure shows that the elasticities of production of the two inputs are approximately zero or even negative since 1975, implying these inputs have been obviously overused. Consequently, it is possible to reduce widely the use of the two inputs without or with only less production or income loss.