Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Onaga, Tomokatsu"'
Trading activities in financial systems create various channels through which systemic risk can propagate. An important contagion channel is financial fire sales, where a bank failure causes asset prices to fall due to asset liquidation, which in tur
Externí odkaz:
http://arxiv.org/abs/2207.03194
Publikováno v:
Journal of Economic Dynamics and Control 146, 104561, 2023
How and to what extent will new activities spread through social ties? Here, we develop a more sophisticated framework than the standard mean-field approach to describe the diffusion dynamics of multiple activities on complex networks. We show that t
Externí odkaz:
http://arxiv.org/abs/2109.14560
Autor:
Kobayashi, Teruyoshi, Onaga, Tomokatsu
Publikováno v:
Economic Theory, 2022
New ideas and technologies adopted by a small number of individuals occasionally spread globally through a complex web of social ties. Here, we present a simple and general approximation method, namely, a message-passing approach, that allows us to d
Externí odkaz:
http://arxiv.org/abs/2103.09417
Autor:
Fujiwara, Naoya, Onaga, Tomokatsu, Wada, Takayuki, Takeuchi, Shouhei, Seto, Junji, Nakaya, Tomoki, Aihara, Kazuyuki
Facing a global epidemic of new infectious diseases such as COVID-19, non-pharmaceutical interventions (NPIs), which reduce transmission rates without medical actions, are being implemented around the world to mitigate spreads. One of the problems in
Externí odkaz:
http://arxiv.org/abs/2103.02175
Autor:
Gleeson, James P., Onaga, Tomokatsu, Fennell, Peter, Cotter, James, Burke, Raymond, O'Sullivan, David J. P.
Publikováno v:
Journal of Complex Networks (2021) 8 (6): cnab002
A detailed analysis of Twitter-based information cascades is performed, and it is demonstrated that branching process hypotheses are approximately satisfied. Using a branching process framework, models of agent-to-agent transmission are compared to c
Externí odkaz:
http://arxiv.org/abs/2007.08916
Autor:
Onaga, Tomokatsu
0048
甲第20893号
理博第4345号
新制||理||1624(附属図書館)
学位規則第4条第1項該当
Doctor of Science
Kyoto University
DFAM
甲第20893号
理博第4345号
新制||理||1624(附属図書館)
学位規則第4条第1項該当
Doctor of Science
Kyoto University
DFAM
Externí odkaz:
http://hdl.handle.net/2433/232228
Publikováno v:
In Journal of Economic Dynamics and Control January 2023 146
Publikováno v:
Phys. Rev. Lett. 119, 108301 (2017)
Social contact networks underlying epidemic processes in humans and animals are highly dynamic. The spreading of infections on such temporal networks can differ dramatically from spreading on static networks. We theoretically investigate the effects
Externí odkaz:
http://arxiv.org/abs/1702.05054
Autor:
Onaga, Tomokatsu, Shinomoto, Shigeru
Publikováno v:
Scientific Reports 6, 33321 (2016)
There is a commonality among contagious diseases, tweets, urban crimes, nuclear reactions, and neuronal firings that past events facilitate the future occurrence of events. The spread of events has been extensively studied such that the systems exhib
Externí odkaz:
http://arxiv.org/abs/1603.05859
Autor:
Kobayashi, Teruyoshi1 (AUTHOR) kobayashi@econ.kobe-u.ac.jp, Onaga, Tomokatsu2 (AUTHOR)
Publikováno v:
Economic Theory. Jul2023, Vol. 76 Issue 1, p251-287. 37p.