資本関係に基づく企業ネットワークを通した産業ごとの事業エコシステムの比較

抄録

How to build a business ecosystem is an important issue for companies. So far businessdiversification has often been discussed from the view point of "conglomerate discounts" and "selectionand concentration". On the other hand, recently the necessity of "open innovation" through collaborationamong various companies has been extensively discussed. In this research, a large-scale corporateinformation database is used to construct and visualize corporate networks based on corporate capitalrelations. Then from the viewpoints of business diversification, decentralization and openization, we clarifythe characteristics of parent companies and capital networks of major corporate groups and quantitativelyanalyze the relation between these characteristics and the profit of the companies.