Konno, Tomohiko - In: Economics: The Open-Access, Open-Assessment E-Journal 3 (2009) 2009-31, pp. 1-13
We analyze fundamental characteristics of the inter-firm transaction network through the data of 800,000 Japanese firms …. We find that there exists a hierarchical structure and a negative degree correlation in this transaction network. We also … find that this undirected network is a scale-free network. We bring to light these characteristics of the network and …