60 citations · 152 across the 17 of their papers we have counts for
20 papers
Causal Hierarchy in the Financial Market Network -- Uncovered by the Helmholtz-Hodge-Kodaira Decomposition
Tobias Wand, Oliver Kamps, Hiroshi Iyetomi
Granger causality can uncover the cause and effect relationships in financial networks. However, such networks can be convoluted and difficult to interpret, but the Helmholtz-Hodge…
Identifying the Hierarchical Influence Structure Behind Smart Sanctions Using Network Analysis
Ryohei Hisano, Hiroshi Iyetomi, Takayuki Mizuno
Smart sanctions are an increasingly popular tool in foreign policy. Countries and international institutions worldwide issue such lists to sanction targeted entities through financ…
Hierarchical communities in the walnut structure of the Japanese production network
Abhijit Chakraborty, Yuichi Kichikawa, Takashi Iino +4
This paper studies the structure of the Japanese production network, which includes one million firms and five million supplier-customer links. This study finds that this network f…
Trade Network Reconstruction and Simulation with Changes in Trade Policy
Yuichi Ikeda, Hiroshi Iyetomi
The interdependent nature of the global economy has become stronger with increases in international trade and investment. We propose a new model to reconstruct the international tr…
Backbone of credit relationships in the Japanese credit market
Luca Marotta, Salvatore Miccichè, Yoshi Fujiwara +4
We detect the backbone of the weighted bipartite network of the Japanese credit market relationships. The backbone is detected by adapting a general method used in the investigatio…
Bank-firm credit network in Japan. An analysis of a bipartite network
Luca Marotta, Salvatore Miccichè, Yoshi Fujiwara +4
We present an analysis of the credit market of Japan. The analysis is performed by investigating the bipartite network of banks and firms which is obtained by setting a link betwee…