While the Japanese economy has been emerging from a long period of economic stagnation and entering a phase of steady economic recovery, there has been considerable change in (1) funds procurement by firms, (2) networks between firms (interfirm relationships based on commercial and capital transactions), and (3) relationships between companies and financial institutions relating to financial and capital transactions. This study group will empirically elucidate this transformation by using micro-level data on large corporations, SMEs, and financial institutions, and also data on the transactional relationships between firms themselves and those between firms and financial institutions.