INDUSTRY OF OIZUMI-MACHI, GUNMA-KEN, JAPAN

Abstract

When a big electric assembly factory is established on the non-assembly industrial region, some small factories, especially related to the big factory, are gradually followed the growth with enlargement of the big factory. The writer pursued here how process of formation of industrial region, formed on the double economic structure of Japan, is. Three stages for formative process of the regional agglomeration, according the writer's method of division, are following: 1) Priliminary stage: small factories related directly to the big factory, known as complementary and subsidiary factories, are established by the local plants and have get their simple technique. Their agglomeration makes the preliminary type of industrial region. Labor's supply by subcontractor is almost restricted within leaving agrarian labors in the local area. 2) Expanding stage: Secondary industries begin to penetrate the non-assembly industrial area, but most of them are small size and belong to foreign plants. They are expanded their size with agglomeration of the big assembly factory, and lead foreign plants with higher technique. The complementary factories renew their techniques and managements. Agglomeration of their size become more intense. Boundary of labor's supply also expands into the margin of the core area. 3) Complete stage: When the complementary, subsidiary and secondary industries of the big factory agglomerate to some extents, they have to make the regional agglomeration of manufacture which is made from communication with the big factory. Boundary of labor's supply is also conf ind within definitive range. Generally speaking, the subcontractor of foreign plants with higher technique are later located than the one of local plants with lower technique. The formers are almost intended in industrial estate, and the latters in the core area.