Wholesalers are considered to play an important role in ensuring efficient transaction networks. Using unique data on Japanese domestic transactions compiled by Tokyo Shoko Research, we investigate wholesalers' roles in transaction networks for intermediate manufacturing goods. Comparing...

It has been perceived that many networks observed in the social sciences, including that involving inter-company, show the characteristics of a small world, in which many subjects are very closely related. Because the competitiveness of the Japanese industry is thought to depend on the strong...

This study investigates the localization of collaborative works in knowledge creation, using data on Japanese patent applications. Applying distance-based methods, we obtained the following results. First, collaborations are significantly localized at the 5% level, within a localization range of...

In this study, we investigate the role of geographical proximity in an inter-firm transaction network and the role of hub firms on geographical spread of regional impact. By using inter-firm micro transaction data of over 800 thousands firms, we found that indirect transaction is geographically...

We examine whether the adoption of information security measures can reduce the probability of computer virus infection by using firm-level survey data and probit regression analysis. We find that implementing two security measures—Web content filtering (WCF) and restriction of bringing in/out...

Using a novel dataset compiled from Japanese health insurance societies covering about 1,500 firms and 15 million employees in total, we examine wage inequality within and between firms. Employing the mean log deviation approach to decompose wage inequality into within-firm and between-firm...

This paper investigates the role of inter-firm transaction structure on industrial agglomeration by using Japanese firm-level transaction relationship data. First, we measure the industrial agglomeration for each industry. Next, we measure the intensity of transactions and inequalities of...

This study investigates the localization of establishment-level knowledge creation by using data from the Japanese patent database. Using distance-based methods, we obtained the following results. First, Japanese patent-creating establishments are significantly localized at the 5% level, with...

Firms operate in complex supplier-customer networks that potentially range over long distances. However, the effects of supplier networks and supplier location on firm performance are largely unknown. This paper characterizes the domestic production network in Japan using detailed buyer-supplier...

This paper quantifies the spillover effect of exogenous shocks, such as earthquakes, on other firms through the supply chain network. Combining micro data on inter-firm transaction networks and geographic information systems, we examine firms' sales growth and transaction relationships outside...