Hiroshi Iyetomi

Niigata University

Professor of Mathematics

8050 Ikarashi-2-cho

Nishi-ku

Niigata, 9502181

Japan

  • Niigata University

SCHOLARLY PAPERS

14

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7

CROSSREF CITATIONS

11

Scholarly Papers (14)

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1.

Interdependencies and Causalities in Coupled Financial Networks

I. Vodenska, H. Aoyama, Y. Fujiwara, H. Iyetomi, Y. Arai, Interdependencies and causalities in complex financial networks, PLoS ONE 11(3): e0150994. doi:10.1371/journal.pone.0150994 (2016), 29th Australasian Finance and Banking Conference 2016
Number of pages: 30 Posted: 08 Aug 2014 Last Revised: 11 May 2016
Irena Vodenska, Hideaki Aoyama, Yoshi Fujiwara, Hiroshi Iyetomi and Yuta Arai
Boston University Metropolitan College, GSAIS, Kyoto University, University of Hyogo - Graduate School of Simulation Studies, Niigata University and Niigata University
Downloads 187 (169,878)
Citation 4

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Complex Principal Component Analysis, Hilbert Transform, Financial Networks, Foreign Exchange, Equity Markets

2.

Deflation/Inflation Dynamics: Analysis Based on Micro Prices

Number of pages: 60 Posted: 16 Feb 2015 Last Revised: 17 Feb 2015
Hiroshi Yoshikawa, Hideaki Aoyama, Yoshi Fujiwara and Hiroshi Iyetomi
University of Tokyo - Faculty of Economics, GSAIS, Kyoto University, University of Hyogo - Graduate School of Simulation Studies and Niigata University
Downloads 116 (251,018)
Citation 7

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CPI, sticky prices, Hilbert transformation, CPCA

3.

Systemic Risk and Vulnerabilities of Bank Networks

Number of pages: 54 Posted: 10 Oct 2017 Last Revised: 12 Oct 2017
Irena Vodenska, Hideaki Aoyama, Alexander P. Becker, Yoshi Fujiwara, Hiroshi Iyetomi and Eliza Lungu
Boston University Metropolitan College, GSAIS, Kyoto University, Boston University - Department of Physics, University of Hyogo - Graduate School of Simulation Studies, Niigata University and Kyoto University
Downloads 96 (285,989)
Citation 1

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Systemic Risk, Macroprudential Regulation, European Bank Network, Stress Testing, Portfolio Overlap

4.

Bank-Firm Credit Network in Japan. An Analysis of a Bipartite Network

Number of pages: 9 Posted: 22 Jul 2014
Luca Marotta, Salvatore Miccichè, Yoshi Fujiwara, Hiroshi Iyetomi, Hideaki Aoyama, Mauro Gallegati and Rosario N. Mantegna
University of Palermo, University of Palermo - Department of Physics and Chemistry, University of Hyogo - Graduate School of Simulation Studies, Niigata University, GSAIS, Kyoto University, Università Politecnica delle Marche - Faculty of Economics and University of Palermo
Downloads 87 (304,375)
Citation 6

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Credit market, Networked market, Financial networks, Bipartite networks

5.

Structure and Temporal Change of the Credit Network between Banks and Large Firms in Japan

Economics: The Open-Access, Open-Assessment E-Journal, Vol. 3, 2009-7
Number of pages: 20 Posted: 18 Dec 2010
Yoshi Fujiwara, Hideaki Aoyama, Yuichi Ikeda, Hiroshi Iyetomi and Wataru Souma
University of Hyogo - Graduate School of Simulation Studies, GSAIS, Kyoto University, affiliation not provided to SSRN, Niigata University and ATR-NIS Network Informatics Laboratories
Downloads 87 (304,375)
Citation 1

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Banking, credit topology, bipartite network, systemic risk

6.

Interindustry Linkages of Prices: Analysis of Japan's Deflation

Downloads 60 (374,335)

Interindustry Linkages of Prices: Analysis of Japan's Deflation

Number of pages: 35 Posted: 16 Feb 2018 Last Revised: 22 Feb 2018
Yuichi Kichikawa, Hiroshi Iyetomi, Hideaki Aoyama, Yoshi Fujiwara and Hiroshi Yoshikawa
Niigata University, Niigata University, GSAIS, Kyoto University, University of Hyogo - Graduate School of Simulation Studies and University of Tokyo - Faculty of Economics
Downloads 40 (454,678)

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CPI, Sticky Prices, Interindustry Linkages, Cluster, PCA

Interindustry Linkages of Prices - Analysis of Japan's Deflation

Number of pages: 65 Posted: 17 Jun 2019
Yuichi Kichikawa, Hiroshi Iyetomi, Hideaki Aoyama, Yoshi Fujiwara and Hiroshi Yoshikawa
Niigata University, Niigata University, GSAIS, Kyoto University, University of Hyogo - Graduate School of Simulation Studies and University of Tokyo - Faculty of Economics
Downloads 20 (566,048)

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IPI, PPI, CPI, Sticky prices, Cluster, PCA

7.

Distribution of Labour Productivity in Japan Over the Period 1996 - 2006

Downloads 55 (390,362)
Citation 1

Distribution of Labour Productivity in Japan Over the Period 1996 - 2006

Economics Discussion Paper No. 2009-2
Number of pages: 13 Posted: 18 Dec 2010
Wataru Souma, Yuichi Ikeda, Hiroshi Iyetomi and Yoshi Fujiwara
ATR-NIS Network Informatics Laboratories, affiliation not provided to SSRN, Niigata University and University of Hyogo - Graduate School of Simulation Studies
Downloads 28 (514,706)
Citation 1

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Labour productivity, marginal labour productivity, inequality

Distribution of Labour Productivity in Japan Over the Period 1996-2006

Economics: The Open-Access, Open-Assessment E-Journal, Vol. 3, 2009-14
Number of pages: 16 Posted: 18 Dec 2010
Yoshi Fujiwara, Hiroshi Iyetomi, Yuichi Ikeda and Wataru Souma
University of Hyogo - Graduate School of Simulation Studies, Niigata University, affiliation not provided to SSRN and ATR-NIS Network Informatics Laboratories
Downloads 27 (520,615)

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Labour productivity, marginal productivity, power law distribution, inequality

8.

Hierarchical and Circular Flow Structure of Interfirm Transaction Networks in Japan

Number of pages: 23 Posted: 20 May 2018
Yuichi Kichikawa, Hiroshi Iyetomi, Takashi Iino and Hiroyasu Inoue
Niigata University, Niigata University, Niigata University and University of Hyogo - Graduate School of Simulation Studies
Downloads 50 (407,251)

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interfirm transaction network, hierarchical structure, potential flow, circular flow, Helmholtz-Hodge decomposition, community detection

9.

Hierarchical Communities in the Walnut Structure of the Japanese Production Network

PLoS ONE 13(8), 2018, DOI: 10.1371/journal.pone.0202739
Number of pages: 38 Posted: 01 Mar 2018 Last Revised: 08 Oct 2018
Abhijit Chakraborty, Yuichi Kichikawa, Takashi Iino, Hiroshi Iyetomi, Hiroyasu Inoue, Yoshi Fujiwara and Hideaki Aoyama
University of Hyogo - Graduate School of Simulation Studies, Niigata University, Niigata University, Niigata University, University of Hyogo - Graduate School of Simulation Studies, University of Hyogo - Graduate School of Simulation Studies and GSAIS, Kyoto University
Downloads 42 (437,075)
Citation 1

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Production network, Giant strongly connected component, Walnut structure, Hierarchical structure of communities, Overexpressions, Input-output analysis

10.

Backbone of Credit Relationships in the Japanese Credit Market

Number of pages: 14 Posted: 22 Nov 2015
Luca Marotta, Salvatore Miccichè, Yoshi Fujiwara, Hiroshi Iyetomi, Hideaki Aoyama, Mauro Gallegati and Rosario N. Mantegna
University of Palermo, University of Palermo - Department of Physics and Chemistry, University of Hyogo - Graduate School of Simulation Studies, Niigata University, GSAIS, Kyoto University, Università Politecnica delle Marche - Faculty of Economics and University of Palermo
Downloads 26 (511,712)
Citation 1

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Complex networks, Information filtering, Statistically validated networks, Credit market

11.

Superstatistics of Labour Productivity in Manufacturing and Nonmanufacturing Sectors

Economics: The Open-Access, Open-Assessment E-Journal, Vol. 3, 2009-22
Number of pages: 18 Posted: 18 Dec 2010
Sebastian Schich, Yoshi Fujiwara, Hideaki Aoyama, Hiroshi Iyetomi and Wataru Souma
Organisation for Economic Co-operation and Development (OECD), University of Hyogo - Graduate School of Simulation Studies, GSAIS, Kyoto University, Niigata University and ATR-NIS Network Informatics Laboratories
Downloads 21 (541,182)

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Labour productivity, superstatistics, Pareto's Law, business cycle, demand index

12.

Structure and Temporal Change of Credit Network between Banks and Large Firms in Japan

Economics Discussion Paper No. 2009-1
Number of pages: 16 Posted: 18 Dec 2010
Yoshi Fujiwara, Hideaki Aoyama, Yuichi Ikeda, Hiroshi Iyetomi and Wataru Souma
University of Hyogo - Graduate School of Simulation Studies, GSAIS, Kyoto University, affiliation not provided to SSRN, Niigata University and ATR-NIS Network Informatics Laboratories
Downloads 17 (565,923)
Citation 2

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Banks-firms credit, credit topology, Bipartite network

13.

Superstatistics of Labour Productivity in Manufacturing and Nonmanufacturing Sectors

Economics Discussion Paper No. 2008-42
Number of pages: 15 Posted: 18 Dec 2010
Hideaki Aoyama, Yoshi Fujiwara, Yuichi Ikeda, Hiroshi Iyetomi and Wataru Souma
GSAIS, Kyoto University, University of Hyogo - Graduate School of Simulation Studies, affiliation not provided to SSRN, Niigata University and ATR-NIS Network Informatics Laboratories
Downloads 16 (572,097)

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Labour productivity, superstatistics, Pareto's law, Business Cycle, demand index

14.

Empirical Evidence for Collective Motion of Prices with Macroeconomic Indicators in Japan

Number of pages: 28 Posted: 01 Mar 2018
Yuichi Kichikawa, Hiroshi Iyetomi, Hideaki Aoyama and Hiroshi Yoshikawa
Niigata University, Niigata University, GSAIS, Kyoto University and University of Tokyo - Faculty of Economics
Downloads 11 (604,887)

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price changes, business cycles, exchange rate, Hilbert transformation, principal component analysis, dynamical linkage