204 citations · 1.1k across the 47 of their papers we have counts for
50 papers
XRP Network and Proposal of Flow Index
Hideaki Aoyama
XRP is a modern crypto-asset (crypto-currency) developed by Ripple Labs, which has been increasing its financial presence. We study its transaction history available as ledger data…
Dual Labor Market and the "Phillips Curve Puzzle"
Hideaki Aoyama, Corrado Di Guilmi, Yoshi Fujiwara +1
Low inflation was once a welcome to both policy makers and the public. However, Japan's experience during the 1990's changed the consensus view on price of economists and central b…
Untangling the complexity of market competition in consumer goods -A complex Hilbert PCA analysis
Makoto Mizuno, Hideaki Aoyama, Yoshi Fujiwara
Today's consumer goods markets are rapidly evolving with significant growth in the number of information media as well as the number of competitive products. In this environment, o…
Money flow network among firms' accounts in a regional bank of Japan
Yoshi Fujiwara, Hiroyasu Inoue, Takayuki Yamaguchi +2
In this study, we investigate the flow of money among bank accounts possessed by firms in a region by employing an exhaustive list of all the bank transfers in a regional bank in J…
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…
Complex Correlation Approach for High Frequency Financial Data
Mateusz Wilinski, Yuichi Ikeda, Hideaki Aoyama
We propose a novel approach that allows to calculate Hilbert transform based complex correlation for unevenly spaced data. This method is especially suitable for high frequency tra…