Japanese

Shinichi Yamaguchi

■Faculty	The Center for Global Communications (GLOCOM)
■Position	Associate Professor

Last Updated: Jul. 04, 2020 at 21:31

Researcher Profile & Settings

Name

Shinichi Yamaguchi

Profile & Settings

Research funding number: 60769529

ORCID ID: 0000-0002-5488-2542

Affiliation

The Center for Global Communications (GLOCOM) Associate Professor

Education

Apr. 2012- Mar. 2015Keio University Graduate School of Economics
Apr. 2010- Mar. 2012Keio University Graduate School of Economics
Apr. 2006- Mar. 2010Keio University Department of Economics

Degree

Ph.D. (Economics)
修士(経済学)

Association Memberships

European Association for Research in Industrial Economics, THE INFOSOCIONOMICS SOCIETY, DIGITAL GAMES RESEARCH ASSOCIATION JAPAN, THE SOCIETY FOR SOCIO-INFORMATICS, THE JAPAN SOCIETY OF INFORMATION AND COMMUNICATION RESEARCH, THE ACADEMIC ASSOCIATION FOR ORGANIZATIONAL SCIENCE, JAPAN ASSOCIATION FOR CULTURAL ECONOMICS, JAPANESE ECONOMIC ASSOCIATION

Committee Memberships

Jul. 2020- TodayYahoo Japan Corporation Study Group on How to Manage Platform Services
Jun. 2020- TodayDigital Crisis Research Institute Advisor
Jun. 2020- TodayDisinformation Prevention Forum Safer Internet Association
Apr. 2020- TodayJAMSTEC（Japan Agency for Marine-Earth Science and Technology） Advisor
Jul. 2019- Oct. 2019The 4th International Workshop on Application of Big Data for Computational Social Science, IEEE/WIC/ACM International Conference of Web Intelligence 2019 program committee member
Jun. 2017- Dec. 2017The 2nd International Workshop on Application of Big Data for Computational Social Science, IEEE Big Data 2017 program committee member

Academic & Professional Experience

Jul. 2020- TodayDirector, Risk Communication Institute of Japan
Apr. 2020- TodayAdvisor, Japan Agency for Marine-Earth Science and Technology
Apr. 2020- TodayAssociate Professor, Center for Global Communications, International University of Japan
Sep. 2017- Mar. 2018Keio University
Jun. 2016- Mar. 2020Center for Global Communications,International University of Japan, International University of Japan
Apr. 2016- TodayThe Faculty of Social Sciences, Toyo Eiwa University
Apr. 2015- Jun. 2016Center for Global Communications, International University of Japan
Apr. 2013- Mar. 2015Keio University
Apr. 2012- Mar. 2013Keio University
Apr. 2011- Mar. 2013Faculty of Economics, Keio University

Research Activities

Published Papers

How Do People Value Data Utilization?: An Empirical Analysis Using Contingent Valuation Method in Japan
Shinichi Yamaguchi, Hidetaka Oshima, Hiroaki Saso, Shihoko Aoki
Technology in Society 62 Aug. 2020 [Refereed]
The impact of licensed and unlicensed free goods: An empirical analysis of music, video, and book industries in Japan
Shinichi Yamaguchi, Hirohide Sakaguchi, Iyanaga Kotaro, Tatsuo Tanaka
SSRN 3568428 1-27 Apr. 2020
Why are there so many extreme opinions online?: An empirical analysis comparing Japan, Korea, and the United States
Shinichi Yamaguchi
SSRN 3568457 1-36 Apr. 2020
The effect of online C2C markets on new product purchasing behavior: An empirical analysis of Japanese selling apps
Shinichi Yamaguchi
SSRN 3568444 1-25 Apr. 2020
The relationship between time spent playing mobile games and wellbeing
Shinichi Yamaguchi
SSRN 3568469 1-40 Apr. 2020
An empirical analysis of the relationship between the internet users’ eWOM behavior and their characteristics / motivation in Japan
Shinichi Yamaguchi, Iyanaga Kotaro, Hirohide Sakaguchi
Journal of Information and Communication Research 37(1) 37-46 Jul. 2019 [Refereed]
Estimating Sampling Bias of Firm Survey
Tatsuo Tanaka, Shinichi Yamaguchi
Journal of Information and Communications Policy 3(1) 1-22 Jun. 2019 [Refereed]
Two Strategies in the Freemium Industry:
Tatsuo Tanaka, Shinichi Yamaguchi, Koutaro Yanaga
Organizational Science 52(3) 47-56 Mar. 2019 [Refereed]
The Economic Impact of Posting on Social Media
Shinichi Yamaguchi, Hiroaki Saso, Shihoko Aoki
GLOCOM DISCUSSION PAPER 19(1) 1-19 Mar. 2019
Fake News Identity and the Future of the Information Society
Shinichi Yamaguchi
Harvard Business Review 44(1) 62-73 Dec. 2018
The Boosting Effect of E-WOM on Macro-level Consumption: A Cross-Industry Empirical Analysis in Japan
Shinichi YAMAGUCHI, Hirohide SAKAGUCHI, Kotaro IYANAGA
The Review of Socionetwork Strategies 12(2) 167-181 Dec. 2018 [Refereed]
Estimation of Farm Population in 2040 by Cohort Change Rate Method and Policy Implications
kotaro Iyanaga, Shinichi Yamaguchi, Naho Kobayashi
GLOCOM DISCUSSION PAPER 18(4) 1-9 Oct. 2018
The Impact of the Information Source on the Consumer Willingness to Continue Service : An Empirical Analysis in Mobile Game Industries
Iyanaga<, K, Yamauchi, S, Sakaguchi, H, Tanaka, T
InfoCom Review(71) 2-14 Jul. 2018 [Refereed]
How to Advance the Utilization of Internal and External Data: An Empirical Analysis of Characteristics that Affect Data Utilization Behavior
Shinichi Yamaguchi
Organizational Science 51(4) 24-32 Jun. 2018
Consumer Surplus of Information Sharing on the Internet in Japan
Shinichi Yamaguchi
InfoCom REVIEW(70) 2-11 Jan. 2018 [Refereed]
The Significance of a Free-Business Model in Creative Industries
YAMAGUCHI Shin-ichi
Journal of Information and Communication Research 35(3) 23-34 Dec. 2017 [Refereed]
The current development of information and communication technologies, such as the rapid popularization of the Internet and increasingly fast lines of communication, has dramatically changed the creative industries' business model. One of the noteworthy changes is the large increase in the distribution of a Freemium business model. Freemium is a new business model: a basic service is provided free of charge, but money is charged for virtual goods or other value-added functions. However, many economists and company managers are concerned about the substitution effect: consumers whose consumption is satisfied through free goods stop purchasing paid goods, causing revenues from paid goods to decrease. In this paper, I discuss the impact of free digital distribution on the number of physical sales in the music industry from the view point of complementary effects and substitution effects.The results showed that the complementary effect of free digital distribution is greater than the substitution effect, so free digital distribution has a significant positive impact on the number of physical sales in the music industry. It was found that the number of physical sales increases by about 0.19% when free digital distribution views increase by 1%. In addition, short term free digital distribution does not have a significant positive effect, but long term free digital distribution does. Furthermore, the number of physical sales which resulted when free digital distribution was provided was significantly larger than when free digital distribution was not provided. From the above, it is proposed that music companies should provide long term free digital distribution.
The Substitution Effect of Mobile Games on Console Games: An Empirical analysis of Japanese Video Game Industry
Shinichi YAMAGUCHI, Kotaro IYANAGA, Hirohide SAKAGUCHI, Tatsuo TANAKA
The Review of Socionetwork Strategies 11(2) 95-110 Dec. 2017 [Refereed]
An Empirical Analysis of Flaming Participants' Motives
Shinichi Yamaguchi
InfoCom review(69) 61-74 Jul. 2017 [Refereed]
An empirical analysis of network effects by users
Hirohide SAKAGUCHI, Shin-ichi YAMAGUCHI, Koutaro IYANAGA, Tatsuo TANAKA
Journal of Information and Communication Research 34(4) 143-152 Mar. 2017 [Refereed]
The Impact of Consumer Payments on Long-Term Sales in Freemium:
YAMAGUCHI Shin-ichi, SAKAGUCHI Hirohide, IYANAGA Koutaro, TANAKA Tatsuo
Journal of Information and Communication Research 34(3) 69-79 Dec. 2016 [Refereed]
Freemium is a new business model in information and communication industries: a basic service is provided free of charge, but money is charged for virtual goods or other value-added functions. The number of freemium services is increasing rapidly. Particularly, mobile games that do not set a flat-rate charge but which charge for virtual goods have high profitability and a high growth rate. However, we do not deeply understand the freemium business model because there are few empirical studies. In this paper, I discuss the impact of consumer payments on long-term sales in mobile game industries. The results showed that ARPPU (average revenue per paid user) from the previous term (t-1) has a significant non-linear effect on sales for the current term (t). Furthermore, sales(t) became the maximum value when ARPPU(t-1) was about 11,754 yen. Therefore, it is suggested that firms should operate ARPPU at approximately 11,754 yen from the viewpoint of long-term sales maximization. In addition, non-flat-rate charge freemium has received wide attention as a successful technique. The results of this study may be applicable to other industries besides mobile games.
AN EMPIRICAL ANALYSIS OF THE GAME INDUSTRY TO DEMONSTRATE DECREASED IMPACT OF NETWORK EXTERNALITIES OVER TIME
Shinichi Yamaguchi
Organizational science 49(3) 60-71 Mar. 2016 [Refereed]
DOI
An Empirical Analysis of Actual Examples of "Flaming" and Participants Characteristics
YAMAGUCHI Shin-ichi
Journal of Information and Communication Research 33(2) 53-65 Sep. 2015 [Refereed]
In this paper, I perform the six hypotheses testing about flaming actual situation and flaming participants characteristics by empirical analysis. Flaming is defined that slander comments rush to social media for the speech content and actions of a person. I. The number of flaming has increased in recent years. II Flaming is more likely to occur in companies. III. The number of flaming participants is small. IV. Flaming participants are heavy Internet users. V. Flaming participants have less annual income. VI. Flaming participants believe that may be acceptable to insult others on the Internet. First, based on an analysis of the descriptive statistics, hypothesis I - III were all confirmed. In other words, a lot of flaming has occurred and caused damage to human psychologies and corporate revenues in recent years, however, the number of flaming participants was very small. It was about 1.5% of the Internet users. In addition, the number of flaming was 200 per year. Second, on the basis of the econometric analysis it was found that the five variables, "male", "annual income", "having children", "having unpleasant feelings on the Internet" and "may be acceptable to insult others on the Internet" were associated with flaming participation behavior. On the other hand, the variables such as "education" and "Internet time" had no significant effect. From these facts, while the hypothesis VI was supported, IV and V were rejected.
DOI
The Impact of Paid and Free Digital Distribution on Physical Sales:An Empirical Analysis of the Late-Night Animation Market
YAMAGUCHI Shinichi
Journal of Information and Communication Research 33(1) 15-27 Jun. 2015 [Refereed]
In this paper, I discuss the impact that paid and free digital distribution have on the number of physical sales in the creative industry from the view point of complementary effects and substitution effects. Additionally, using panel data in which products are treated as groups and episodes of TV programs are treated as series, I estimate the relationship between the number of digital distribution views and the number of package physical sales in the late-night animation market.The results showed that the complementary effect of free digital distribution is greater than a substitution effect, so free digital distribution has a significant positive impact on the number of physical sales. It was found that the number of physical sales increases by about 0.10% when free digital distribution views increase by 1%. In addition, paid digital distribution had no significant effect. From the above, it is proposed that digital distribution leads to an increase in the consumer surplus and the producer surplus in late-night animation market at least.Furthermore, while a more detailed analysis revealed that both paid and free digital distribution had an effect on physical sales of products aimed at men, no such effects were seen for products aimed at women. In addition, free digital distribution of original works has a positive effect on physical sales, while paid and free digital distribution of other works have no effects. It was also found that free digital distribution of works by unknown producers has a positive effect on physical sales, while paid and free distribution of works by well-known producers have no effects.
The Impact of Copyright Infringement on Phisical Sales in the Game Industry
YAMAGUCHI, Shinichi
Information and Communications Policy Review 9 178-201 2014 [Refereed]
Behavioral Determinants of Social Game Users : Empirical Analysis of The Network Effect
YAMAGUCHI, Shinichi
InfoCom review(62) 2-17 2014 [Refereed]
Payment Behavior Determinants and Addiction of Mobile Content Users
YAMAGUCHI, Shinichi
Information and Communications Policy Review 7 109-131 2013 [Refereed]
The Effect of Free Online Distribution on Content Product Sales : An Empirical Analysis on BD/DVD Sales of Television Content
YAMAGUCHI, Shinichi
InfoCom review(60) 2-14 2013 [Refereed]

Books etc

The Future of the Data Economy: Japan's Competitive Strategy and Personal Data Protection
Shinichi Yamaguchi
Joint author
GLOCOM Apr. 2020 9784904305171
Economics of flaming and online review
Shinichi Yamaguchi
Sole author
Asahi Shimbun Publications Inc. 2018 9784023317062
The Research on Flaming
Tatsuo Tanaka, Shinichi Yamaguchi
Joint author
勁草書房 Apr. 2016 4326504226
The business model of social games: an economic analysis of freemium
Tatsuo Tanaka, Shinichi Yamaguchi
Joint author
Keiso Shobo May 2015 4326504064

Conference Activities & Talks

An Empirical Analysis of Fake News Spreading Behavior: The Reality of Fake News in Japan and Effective Countermeasures
Shinichi Yamaguchi, Eiki Kikuchi, Shihoko Aoki, Tatsuo Tanaka, Tomoaki Watanabe, Hidetaka Oshima, Kiminari Nagai
the 42nd JSICR (The Japan Society of Information and Communication research) Conference, Spring 2020 Jul. 2020
The relationship between time spent playing mobile games and wellbeing
Shinichi Yamaguchi
The Society of Socio-Informatics 2019 Sep. 2019
People's evaluation of data utilization by platform companies
Shinichi Yamaguchi
2019 Spring (40th) Information and Communications Conference Jun. 2019
The bias of opinions on the Internet: An empirical analysis of Japan-US online review
Shinichi Yamaguchi
2019 The annual meeting of the organization society Sep. 2018
招待有り
Does the online review reflect the long-term views?: An empirical analysis of mobile games
Shinichi Yamaguchi
2018 Spring (38th) Information and Communications Conference Jul. 2018
The Impact of Official and Informal Free Goods: An Empirical Analysis of Creative Industries in Japan
Shinichi Yamaguchi, Hirohide Sakaguchi, Kotaro Iyanaga, Tatsuo Tanaka
44th Annual Conference of the European Association for Research in Industrial Economics (EARIE) Sep. 2017
Prescription Prediction towards Computer-Assisted Diagnosis for Kampo Medicince
Mi, Xiaoyu
International Conference on Computer Application Technologies 2015 Sep. 2015
International Competitiveness and Policy Support of Social Games
YAMAGUCHI, Shinichi
Jul. 2015
An Empirical Analysis of Flaming Occurrence and the Consumer Characteristics of Flaming Participants
YAMAGUCHI, Shinichi
International Conference on Computer Application Technologies 2015 Jun. 2015
The Impact of Free Digital Distribution on Physical Sales:An Empirical Study of the Music Industry in Japan
YAMAGUCHI Shinichi
Transactions of the Academic Association for Organizational Science Jun. 2015
Sales strategy that uses free digital distribution is a new business model in the creative industry. However, it has raised many important management questions the extent to which free digital distribution either crowd out or complement consumption of products. In this paper, we analyze the effect of free digital distribution on physical sales in Japanese music market. The results showed that the complementary effect of free digital distribution is greater than a substitution effect, so free digital distribution has a significant positive impact on the number of physical sales. It was found that the number of physical sales increases by about 0.27% when free digital distribution views increase by 1%. Furthermore, while a more detailed analysis revealed free digital distribution of works by unknown producers has a positive effect on physical sales, while free distribution of works by well-known producers have no effects. In addition, free digital distribution of long movies has a strong positive effect on the number of physical sales than one of short movies. It was also found that free digital distribution of pop music and idol music has a positive effect on physical sales, while free digital distribution of other music have no effects.
Payment Behavior Determinant of Social Games: Empirical Analysis of Network Effects
YAMAGUCHI, Shinichi
May 2013

Misc

The Economic Impact of Information Sharing on the Internet
Shinichi Yamaguchi
Innovation Nippon 2015 Research Report Feb. 2016
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Awards & Honors

Jun. 2018 The Japan Society of Information and Communication Research The Japan Society of Information and Communication Research, Paper Award The Significance of a Free-Business Model in Creative Industries
Mar. 2018 Telecommunications Advancement Foundation 33th Telecommunications Advancement Foundation Award Research on flaming
Jun. 2017 The Japan Society of Information and Communication Research The Japan Society of Information and Communication Research, Paper Award The Impact of Consumer Payments on Long-Term Sales in Freemium
Jun. 2017 The Academic Association for Organizational Science Takamiya Award An Empirical Analysis of the Game Industry to Demonstrate Decreased Impact of Network Externalities Over Time

Research Grants & Projects

Survey and Research on the Promotion of Public-Private Data Utilization
Cabinet secretariat：Dispatch of cases

Social Contribution

Mechanisms and Social Responses to the Accelerating Internet Flames at COVID-19
[Panelist] Japan Institute of Law and Information Systems Jun. 2020
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Internet Flames and the Future of the Information Society: Statistical Analysis Shows the Reality of the Internet Society
[Lecturer] Digital Hollywood University Jun. 2020
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Slander accelerates in COVID-19: The reality of online flames and how to deal with them
[Lecturer] Digital Crisis Research Institute Jun. 2020
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What is the corporate crisis management response to COVID-19?
[Panelist] Digital Crisis Research Institute May 2020
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Feb. 2020
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Nov. 2019
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