Updated on 2024/04/16

写真a

 
JITSUZUMI Toshiya
 
Organization
Faculty of Policy Studies Professor
Other responsible organization
Policy Studies Course of Graduate School of Policy Studies, Master's Program
Policy Studies Course of Graduate School of Policy Studies, Doctoral Program
Contact information
The inquiry by e-mail is 《here
External link

Degree

  • D.Sc., Global Information and Telecommunication Studies ( Waseda University )

  • MBA ( Leonard N. Stern School of Business, New York University )

Education

  • 2003.3
     

    Waseda University   Global Information and Telecommunication Studies   doctor course   completed

  • 1991.5
     

    New York University   Leonard N. Stern School of Business   Finance   master course   completed

  • 1986.3
     

    The University of Tokyo   Faculty of Law   graduated

Research History

  • 2017.4 - Now

    中央大学総合政策学部 教授

  • 2019.4 - 2021.10

    中央大学総合政策研究科委員長

  • 2009.4 - 2017.3

    九州大学大学院経済学研究院 教授

  • 2004.3 - 2009.3

    九州大学大学院経済学研究院 助教授(2007年4月より准教授に呼称変更)

  • 2007.9 - 2008.9

    Columbia Institute for Tele-Information at Columbia Business School, Columbia University, Visiting Scholar (安倍フェローシップ)

  • 2003.7 - 2004.3

    日本郵政公社経営企画部門 郵政総合研究所 部長

  • 2000.7 - 2003.7

    長崎大学経済学部 助教授

  • 1995.6 - 2000.7

    郵政省郵政研究所通信経済研究部 主任研究官

  • 1986.4 - 1995.6

    郵政省

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Professional Memberships

  • 2023.10 - Now

    Association for the Advancement of Artificial Intelligence

  •   - Now

    日本地域学会

  •   - Now

    情報通信学会

  •   - Now

    International Telecommunications Society

  •   - Now

    公益事業学会

  •   - Now

    情報法制学会

  •   - Now

    Regional Science Association International

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Research Interests

  • telecom/internet policy, net neutrality, broadband ecosystem, OTT, AI

Research Areas

  • Humanities & Social Sciences / Economic policy  / 通信経済、通信政策、インターネット政策

Papers

  • Advancements in the Discussion on “Fair Contribution” to Network Investment: A Focus on European Proposals Reviewed

    Jitsuzumi Toshiya

    Journal of Information and Communication Research   41 ( 3 )   13 - 23   2023.12

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  • スプリンターネットを巡る議論

    実積寿也, 前村昌紀, 白畑真, 堀越功, 小宮山功一朗, 水越一郎

    JILISレポート   1 - 20   2023.1

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  • AIガイドライン、トラスト、ガバナンスー最適なルール策定に向けてー Invited

    実積寿也

    Nextcom   50   4 - 12   2022.6

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  • 固定ブロードバンドの実効速度に関する分析―2009年~2020年の計測データからの知見 Reviewed

    実積寿也

    公益事業研究   73 ( 2 )   13 - 28   2022.3

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  • 未成年者のSNSでのネットリスク低減策に対する社会負担可能性の実証分析―AIを活用した「誘い出し防止アプリ」への寄付意思額― Reviewed

    田中大智, 高口鉄平, 実積寿也

    情報通信学会誌   39 ( 2 )   45 - 57   2021.9

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  • 「ネット中立性」が目指す価値―電気通信事業法のフレームワークを踏まえた考察

    実積寿也

    情報法制研究   ( 8 )   29 - 40   2020.11

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  • 情報モラル教育に対する支払意思額の推計 Reviewed

    実積寿也, 高口鉄平, 田中大智

    公益事業研究   71 ( 2 )   23 - 32   2020.3

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  • ゼロレーティングサービスに対する消費者評価の分析 Reviewed

    実積寿也

    情報通信学会誌   37 ( 3 )   1 - 15   2019.12

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  • ネット中立性規制Ver.4へ―ネットワーク中立性3.0の世界

    実積寿也

    情報法制研究   ( 3 )   29 - 43   2018.5

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  • 自治体公衆無線LANの防災利用に関する考察 Reviewed

    実積寿也

    公益事業研究   69 ( 2・3合併号 )   39 - 48   2018.3

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  • 第四次産業革命下での不動産仲介業

    土地総合研究   25 ( 3 )   25 - 31   2017.8

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  • ネットワーク中立性とゼロレーティング

    情報法制研究   ( 1 )   55 - 63   2017.5

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  • メディアとしてのブロードバンド産業の分析:構造変化とコンテンツ振興政策への含意 Reviewed

    情報通信学会誌   33 ( 3 )   7 - 21   2016.3

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  • ネットワーク中立性と品質情報開示―経済学的観点からの分析― Reviewed

    電子情報通信学会論文誌   J98 ( B(10) )   1030 - 1037   2015.10

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  • Model analysis of the two-sided market of the mobile broadband business: in Japan and worldwide Reviewed

    Takachi, K, Jitsuzumi, T

    H. Mitomo, H. Fuke & E. Bohlin (Eds.), The Smart Revolution towards the Sustainable Digital Society: Beyond the Era of Convergence   35 - 63   2015.7

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  • OTT音声通話サービスをめぐる参入障壁の分析:日本市場の例 Reviewed

    情報通信学会誌   33 ( 1 )   1 - 13   2015.5

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  • Economic value of location-based big data: Estimating the size of Japan's B2B market Reviewed

    Koguchi, T, Jitsuzumi, T

    Communications & Strategies   97 ( 1st Quarter )   59 - 74   2015.3

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  • ネットワーク中立性とブロードバンド品質―経済学的観点からの分析― Reviewed

    JITSUZUMI Toshiya

    信学技報   114 ( 374 )   51 - 56   2014.12

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:電子情報通信学会  

    The network neutrality issue is nothing but how to allocate scarce network resources when we face a tremendous increase in Internet traffic. An optimal approach is to let the market dynamism solve the problem as far as possible and government intervention should be limited only when it is absolutely required. In that sense, the predominance of best-effort QoS and the lack of information sharing mechanism of actual broadband quality can be a big probelm. To optimize the market solution, we need to measure and share the actual quality, thereby enabling the market to find new business models that accommodate the unique features of a two-sided market.

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  • Prerequisites for a network neutrality solution: Lessons from an empirical analysis of the Japanese broadband market

    Jitsuzumi Toshiya

    Keizaigaku Kenkyu   81 ( 4 )   213 - 233   2014.12

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    Language:English   Publisher:九州大学経済学会  

    DOI: 10.15017/1515787

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    Other Link: http://hdl.handle.net/2324/1515787

  • パーソナライゼーション・サービスにおける利用者のプライバシー懸念の要因に関する研究 Reviewed

    高崎晴夫, 高口鉄平, 実積寿也

    公益事業研究   66 ( 2 )   25 - 34   2014.11

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  • オープンインターネット命令にかかる控訴審判決の影響 Reviewed

    情報通信学会誌   32 ( 1 )   1 - 12   2014.5

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  • Consumer preferences for mobile broadband quality in Japan: Implications for the discussion on network neutrality

    Jitsuzumi Toshiya

    経済学研究   80 ( 1 )   127 - 142   2013.6

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    Language:Japanese   Publisher:九州大学経済学会  

    DOI: 10.15017/26866

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    Other Link: http://hdl.handle.net/2324/26866

  • 携帯電話の構成要素に対する利用者の選好に関する分析 Reviewed

    高口鉄平, 実積寿也

    静岡大学情報学研究   18 ( 18 )   19 - 32   2013.3

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:静岡大学  

    DOI: 10.14945/00007087

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    Other Link: http://hdl.handle.net/10297/7087

  • An analysis of demand-based factors for broadband migration Reviewed

    Satitsamitpong, M, Otsuka, T, Jitsuzumi, T, Mitomo, H

    Applied Economics Journal   19 ( 2 )   1 - 17   2012.12

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  • モバイルインターネット事業におけるプラットフォームの市場構造に関する経済分析 Reviewed

    高地圭輔, 実積寿也

    地域学研究   41 ( 3 )   681 - 694   2011.12

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    We develop a two-sided market model to analyze the Japanese mobile internet market in which revenues from digital content are rapidly expanding. To pursue new revenue from digital content, mobile telecommunications carriers strategically integrate platform functions (PFs) , such as billing and authentication, into their networks. PFs are necessary for content providers (CPs) to charge users, so it is crucial for them to access PFs in a fair and open manner. Consequently, it seems appropriate to examine the need for government intervention in the transactions between CPs and telecommunications carriers, because telecommunications carrier PFs are bottleneck facilities for CPs. However, the effects of possible intervention should be respectively examined as related to the market environment.<br> We studied the effects of market structure on social welfare with a two-sided market model in which a telecommunications carrier sells mobile telecommunications services to consumers and sets the fees for CPs. Apart from preceding literature focused on advertising model, we introduce a billing model in which the telecommunications carrier purchases content from CPs and sells the content to consumers. A monopolistic telecommunications market is assumed in our model and three different market structures are compared to each other; (1) vertical integration, (2) monopoly in content market and (3) duopoly in content market. <br> First, we found that both the industry profit and the social welfare of (1) were largest. Second, our model also showed that the social welfare of (3) exceeded (2) . However, the industry profit of (2) surpassed (3) . These results indicate that CPs have the incentive to monopolize competitive content market, but content monopoly decreases social welfare. Therefore, if our model adequately works in a market with content industry independent from telecommunications carriers, government intervention should be considered to maximize social welfare.<br> Finally, we extracted additional implications from the model. The welfare of (3) may exceed (1) because an increase in the number of CPs creates product differentiation that can increase consumer utility. Based on this idea, we also examined the effects of some parameters on social welfare as a step toward further analysis.<br><br>JEL Classification: D11, D85, R11

    DOI: 10.2457/srs.41.681

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    Other Link: https://jlc.jst.go.jp/DN/JALC/10000131895?from=CiNii

  • Japan's co-regulatory approach to net neutrality and its flaw: Insufficient literacy on best-effort QoS Reviewed

    Toshiya Jitsuzumi

    Communications & Strategies   ( 84 )   93 - 110   2011.11

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  • 固定インターネット回線品質に対する消費者意識の分析-ネットワーク中立性議論との関連に着目して- Reviewed

    JITSUZUMI Toshiya

    情報通信学会誌   29 ( 1 )   19 - 28   2011.5

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    From an economic perspective, the core of the network neutrality issue is twofold: the negative externality of traffic congestion and the anticompetitive conduct of the dominant player. Economic theory has already provided a set of policy options to deal with such issues. However, in the real world, prevailing business practices in the current Internet ecosystem significantly impede such theoretically correct solutions. In this paper, the author focuses on the quality of service (QoS) of the Fixed Internet and consumers' perceptions of it, and proposes that insufficient QoS consciousness will hinder efficiency in the retail broadband market, thereby hampering the resolution of network neutrality problems. The empirical findings based on the responses to a Web-based questionnaire survey reveal that improving users' QoS consciousness would enable the market mechanism to solve the network neutrality problems. In addition, the analyses identified several factors that contribute to the improvement of QoS consciousness among Internet users in Japan.

    DOI: 10.11430/jsicr.29.1_19

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  • Discussion on network neutrality: Japan’s perspective Reviewed

    Communications & Convergence Review   3 ( 1 )   71 - 89   2011.5

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  • Causes of inefficiency in Japanese railways: Application of DEA for managers and policymakers Reviewed

    Toshiya Jitsuzumi, Akihiro Nakamura

    Socio-Economic Planning Sciences   44 ( 3 )   161 - 173   2010.9

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    Although railway services have been suffering financially due to modal shifts and aging populations, they have been, and will continue to be, an essential component of nations' basic social infrastructures. Since railway firms generate positive externalities, and are required to operate in pre-determined licensed areas, governmental intervention/support may, in some cases, be justified. Indeed, many types of subsidies are created and offered for railway operations in Japan
    while some are meant to cover large investments, others are used as compensation for regional disparities. However, thus far, no attempt has been made to analyze the reasons for the underperformance of Japanese railway services. In other words, it is unclear whether this underperformance can be attributed to exogenous and uncontrollable causes, or endogenous phenomena and, hence, capable of being handled by managers. The optimal degree of intervention is thus not sufficiently known. In the current paper, we propose a method based on data envelopment analysis (DEA) to analyze the causes of inefficiency in Japanese railway operations, and, further, to calculate optimal subsidy levels. The latter are designed to compensate for railways' lack of complete discretion in changing location of their operations and/or increasing/decreasing these operations since they are a regulated service. Our proposed method was applied to 53 Japanese railway operators. In so doing, we identified several key characteristics related to their inefficiencies, and developed optimal subsidies designed to improve performance. © 2009 Elsevier Ltd.

    DOI: 10.1016/j.seps.2009.12.002

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  • Efficiency and sustainability of network neutrality proposals Reviewed

    Toshiya Jitsuzumi

    A. Gentzoglanis & A. Henten (Eds.), Regulation and the Evolution of the Global Telecommunications Industry   253 - 272   2010.5

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  • ネットワーク中立性問題と事業者の役割

    Nextcom   1 ( 1 )   40 - 49   2010.3

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  • An analysis of the telecommunications services demand in Japan using the almost ideal demand system Reviewed

    Nakamura, A, Jitsuzumi, T

    The Empirical Economics Letters   7 ( 10 )   985 - 992   2008.10

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  • Conditions contributing to the success of the Japanese telecom policy over the past five decades Reviewed

    Toshiya Jitsuzumi

    Studies in Regional Science   38 ( 4 )   991 - 1005   2008

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Japan Section of the Regional Science Association International  

    The Japanese telecom market is presently one of the most advanced and dynamic in the world. This is the result of carefully planned development in Japanese telecom policies that have taken advantage of the external conditions of the times in Japan over the past 50 years or more. This article aims to clarify the contributing conditions based on the decades of experience in Japanese telecom policies and to determine the cross-country applicability of these policies. Based on the overall economic and market conditions during this period and considering the development of the Japanese telecom market to date, a set of contributing conditions are proposed. Statistical verifications for the general applicability of such conditions revealed that some hold true in the sampled Organisation for Economic Co-operation and Development (OECD) nations. The most important finding is that the market dominance of the incumbent operator has a significant impact on basic telecom development. Another part of the findings showed conformity with the digital divide between rich and poor nations.

    DOI: 10.2457/srs.38.991

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  • 自由化後の郵便事業の最適産業構造について-日本・英国・スウェーデン市場からの帰納

    経済学研究   74 ( 2 )   101 - 120   2007.10

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  • 加入需要行動を考慮した世帯の通話支出関数の推計

    中村彰宏, 実積寿也, 河村真

    情報通信政策研究プログラム   2007.3

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    Language:Japanese   Publisher:http://www.officepolaris.co.jp/icp/2006paper/2006004.pdf  

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  • 固定電話と携帯電話の料金低下の厚生インパクトの測定

    中村彰宏, 実積寿也

    情報通信政策研究プログラム   2007.3

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  • ユニバーサル「通信」サービスの確保:郵便制度への含意

    Jitsuzumi Toshiya

    経済学研究   73 ( 4 )   23 - 41   2006.12

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    Language:Japanese   Publisher:九州大学経済学会  

    DOI: 10.15017/10609

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    Other Link: http://hdl.handle.net/2324/10609

  • 開発途上国におけるブロードバンド普及政策のあり方:タイの場合 Reviewed

    田尻信行, 岡崎毅, 実積寿也

    情報通信学会誌   24 ( 1 )   49 - 61   2006.5

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  • 鉄道事業者に対する効率的補助金の検討-包絡分析法アプローチ- Reviewed

    実積寿也, 中村彰宏

    公益事業研究   57 ( 4 )   21 - 29   2006.3

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  • 利用者の異質性を考慮した携帯電話の番号ポータビリティ利用者便益の考察 Reviewed

    大塚時雄, 三本松憲生, 森裕治, 実積寿也, 三友仁志

    公益事業研究   57 ( 4 )   39 - 48   2006.3

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  • 通話需要分析と政策的インプリケーション:AI需要体系によるアプローチ Reviewed

    中村彰宏, 実積寿也

    情報通信学会誌   23 ( 3 )   77 - 86   2006.1

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  • 携帯電話の番号ポータビリティ利用の評価に関する選択確率モデルの適用 Reviewed

    大塚時雄, 実積寿也, 三友仁志

    情報通信学会誌   22 ( 3 )   65 - 77   2005.1

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  • 信書便産業自由化の現状と課題

    経済学研究   71 ( 2・3 )   189 - 207   2004.12

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    Language:Japanese   Publisher:九州大学経済学会  

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  • 情報通信技術が買物交通需要パターンに与える影響の分析-学生の購買行動を中心として- Reviewed

    大塚時雄, 染谷広幸, 実積寿也, 三友仁志

    地域学研究   34 ( 1 )   265 - 284   2004.10

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:日本地域学会  

    The purpose of this research is to ascertain how the advancement of Information and Telecommunication Technology (ICT) changes people's behavior as well as the demand structure of transportation. In this paper, we focused on the purchasing behavior and shopping-related trips as the derived demand.<br>Firstly, we produced a conceptional framework to model consumers' purchasing behavior, and specifically direct our attention to the transaction costs in shopping, that is, the costs for information gathering and for acquiring goods because they are certainly influenced by newly developed forms of information technology and their applications, such as the Internet, e-mail, and e-commerce.<br>Secondly, for the empirical study, we conducted a questionnaire survey in two locations in Japan: the major metropolis of Tokyo and the smaller regional city of Nagasaki. The survey inquired into selection factors between retail shops and Internet or catalog-order shops. The result of our empirical survey showed that (1) the willingness to pay (WTP) for information gathering costs has a positive effect on individuals' ICT related characteristics, and (2) the WTP for information gathering has a positive effect to non-shop purchasing, while the WTP for acquiring goods affects nonhas a negative effect on non-shop purchasing.

    DOI: 10.2457/srs.34.265

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    Other Link: https://jlc.jst.go.jp/DN/JALC/00352447492?from=CiNii

  • ネットワーク産業規制の平行進化-信書便市場の競争促進策- Reviewed

    JITSUZUMI Toshiya

    情報通信学会誌   22 ( 2 )   73 - 80   2004.9

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:情報通信学会  

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  • 日本企業の生産性向上に対する情報化・組織構造改革・人的資本形成の相乗効果 Reviewed

    唐澤徹, 実積寿也, 三友仁志

    公益事業研究   56 ( 1 )   25 - 33   2004.7

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  • 鉄道事業の公共性を考慮した線路使用料の決定方法に関する検討-DEAによる線路敷設・管理のヤードスティック指標の計測- Reviewed

    中村彰宏, 実積寿也

    交通学研究2003年研究年報   ( 47 )   59 - 68   2004.3

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:日本交通学会  

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  • Royal Mail Group plcに対する新料金規制の評価

    郵政総研レビュー-イントラネット特別編集号   5 - 13   2003.10

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    Language:Japanese   Publisher:日本郵政公社  

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  • Measuring DEA efficiency in cable television network facilities: What are appropriate criteria for determining the amounts of governmental subsidies? Reviewed

    Toshiya Jitsuzumi, Akihiro Nakamura

    Socio-Economic Planning Sciences   37 ( 1 )   29 - 43   2003.3

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier  

    Recent technological developments have transformed the cable television industry (CATV) from a simple re-transmitter of terrestrial broadcasting to a provider of a broader-band information infrastructure. With cable operators facing an undesirable market situation while operating a fiber optics network vital to the creation of an information-based society within Japan, the Japanese Government has introduced several supportive measures for the industry. Such governmental intervention should desirably be justified not only from a political viewpoint but also from an economic one
    otherwise such measures may distort economic efficiency. In this article, using Data Envelopment Analysis (DEA), the authors identify the deficiencies of an accounting-based intervention scheme and propose an alternative framework with no disincentive side effects. © 2002 Elsevier Science Ltd. All rights reserved.

    DOI: 10.1016/S0038-0121(02)00005-8

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  • 情報化投資効果の発現要件と経済波及メカニズムの解明

    2003.3

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  • わが国企業および産業におけるIT投資の効果発現メカニズム-日本型シナリオの特徴の探索- Reviewed

    実積寿也, 三友仁志, 鬼木甫

    地域学研究   32 ( 1 )   231 - 244   2002.10

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    Investment in information technology (IT) is expected to enhance the productivity and/or profitability of the individual firm, and to deliver productivity-related benefits that flow through the firm, both at sectoral and macroeconomic levels. This flow-through-which we term the "micro-macro linkage"-depends on various factors, and if one (or more) should fail, IT investment may fail to yield tangible macroeconomic benefits.<br>Such failure is widely thought to have occurred in the U. S. during the 1980s, creating the so-called "IT productivity paradox" referenced in Solow's well-known line, "You can see the Computer Age everywhere but in the productivity statistics." In the years since, numerous economists have sought to identify possible causes for this productivity shortfall. For the U. S., the paradox seems happily to have disappeared during the early 1990s. In Japan, however, massive IT investment has yet to deliver macroeconomic growth, suggesting that the productivity paradox remains at work.<br>In this article, the authors draw on the U. S. experience to identify several key factors that may affect the micro-macro linkage, then examine whether these factors may be applicable to Japan today. Our key findings, as derived from Japanese corporate data, are as follows:<br>1. IT investment contributes to firm productivity in Japan;<br>2. Certain forms of management initiative (e. g., creating "flatter" (or less hierarchical) organizations) have not delivered expected benefits in Japan; and<br>3. IT investment does not make any significant positive contribution to profitability in Japanese firms.<br>The authors suggest that Japanese IT paradox may be at least partly attributable to failures in the management initiatives that typically accompany IT introduction.

    DOI: 10.2457/srs.32.231

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    Other Link: https://jlc.jst.go.jp/DN/JALC/00361918846?from=CiNii

  • 効率化インセンティブと整合的な政策補助スキームの検討-DEAを用いたケーブルテレビネットワークの効率性計測- Reviewed

    実積寿也, 中村彰宏

    公益事業研究   53 ( 3 )   11 - 18   2002.3

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  • 情報通信技術によるSustainable Societyの実現可能性とわが国における情報化投資の現状 Reviewed

    三友仁志, 実積寿也, 鬼木甫

    平成12年度情報通信学会年報   2000   1 - 12   2001.3

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  • ICTs and sustainability: The managerial and environmental impact in Japan Reviewed

    Toshiya Jitsuzumi, Hitoshi Mitomo, Hajime Oniki

    Foresight   3 ( 2 )   103 - 112   2001

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    There are manifold causal linkages between information and communications technologies (ICTs) and social sustainability. In this article, these linkages are classified into three areas: direct improvement of corporate productivity, changed behaviour of people/organizations, and improved decision-making capabilities within society. A framework is proposed to analyse the first two of these three linkages, together with the results of a questionnaire survey. These point to a continuous growth trend in Japanese ICT investment with sectoral variations, and statistically significant evidence of ICTs' contributions to corporate operations and environmental issues.

    DOI: 10.1108/14636680110803030

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  • 通話料金指数の作成

    実積寿也, 安藤正信

    郵政研究所月報   13 ( 5 )   52 - 58   2000.5

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  • 移動体通信の普及動向

    実積寿也, 安藤正信

    郵政研究所月報   13 ( 4 )   4 - 20   2000.4

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  • Impact of telecommuting on mass transit congestion: the Tokyo case Reviewed

    H Mitomo, T Jitsuzumi

    TELECOMMUNICATIONS POLICY   23 ( 10-11 )   741 - 751   1999.11

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:ELSEVIER SCI LTD  

    Telecommuting, a dispersed style of commuting enabled by developments in info-communication technology, is becoming increasingly popular among Japanese white-collar employees. According to our estimates, 9-14 million employees will telecommute by 2010, which will result in a 6.9-10.9% reduction in congestion in Tokyo, Japan. Associated cost savings are equivalent to 7.9-26.4% of annual spending on public transportation. Due to the considerable size of these positive external effects, some degree of policy support will be necessary to achieve a socially optimal level of penetration by telecommuting. (C) 1999 Elsevier Science Ltd. All rights reserved.

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  • 有線テレビ放送事業者の経営状況に関する分析

    実積寿也, 中村彰宏

    郵政研究所研究発表会 Discussion Paper   1999.6

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  • ドイツのケーブルテレビ・ビジネス

    郵政研究所月報   12 ( 4 )   67 - 73   1999.4

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  • 移動体通信事業の現状に関する分析

    郵政研究所月報   11 ( 11 )   4 - 23   1998.11

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  • アンケート調査に基づく世帯通話支出分析 Reviewed

    実積寿也, 太田耕史郎, 大石明夫

    情報通信学会誌   16 ( 2 )   105 - 119   1998.9

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  • 通話料金指数の作成

    実積寿也, 大石明夫, 高谷徹

    郵政研究所月報   10 ( 3 )   23 - 39   1998.5

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  • 周波数の有効活用に関する勉強会の検討結果

    廣川みどり, 実積寿也

    郵政省電波資源の有効活用に関する懇談会編『周波数オークション』   104 - 129   1997.6

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    Language:Japanese   Publisher:日刊工業新聞社  

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  • ドイツ電気通信法のユニバーサルサービス

    郵政研究所月報   10 ( 3 )   4 - 20   1997.3

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  • テレコミューティングの私的効果と社会的効果 Reviewed

    三友仁志, 実積寿也

    平成8年度情報通信学会年報   1 - 13   1997.3

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  • テレコミューティングが都市交通の混雑緩和に及ぼす効果 Reviewed

    三友仁志, 実積寿也

    高速道路と自動車   40 ( 2 )   26 - 31   1997.2

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  • テレコミューティングの波及効果-労働者の住居移転と通勤混雑の緩和を中心に-

    郵政研究所月報   9 ( 5 )   4 - 18   1996.5

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Books

  • Policies and Challenges of the Broadband Ecosystem in Japan

    Jitsuzumi, T, Mitomo, H (Eds.)( Role: Joint editorIssues in Regulating Online Platforms)

    Springer  2022.2 

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    Total pages:241   Responsible for pages:23-44   Language:English   Book type:Scholarly book

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  • 図解即戦⼒ 通信業界のしくみとビジネスがこれ1冊でしっかりわかる教科書

    実積寿也, 藤木俊明( Role: Joint author1~4章、8~10章)

    技術評論社  2022.2 

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    Total pages:216   Responsible for pages:12-106,154-209   Language:Japanese   Book type:General book, introductory book for general audience

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  • 公益事業の変容:持続可能性を超えて

    公益事業学会編 (担当ページ執筆者:春日教測, 高口鉄平, 宍倉学, 実積寿也, 中村彰宏, 三友仁志, 湧口清隆)( Role: Contributor通信事業・放送事業)

    関西学院大学出版会  2020.12 

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    Total pages:268   Responsible for pages:203-242   Language:Japanese   Book type:Scholarly book

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  • Telecommunications Policies of Japan

    Mitomo, H (Ed.)( Role: ContributorNet Neutrality)

    Springer  2020.1 

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    Total pages:286   Responsible for pages:201-220   Language:English   Book type:Scholarly book

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  • 通信産業の経済学R1

    実積寿也( Role: Sole author)

    九州大学出版会  2019.10 

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    Total pages:337   Language:Japanese   Book type:Scholarly book

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  • 大災害と情報・メディア―レジリエンスの向上と地域社会の再興に向けて

    三友仁志編著( Role: Contributor自治体公衆無線LANの有効活用戦略)

    勁草書房  2019.3 

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    Total pages:260   Responsible for pages:27-49   Language:Japanese   Book type:Scholarly book

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  • 日本社会の持続可能性と総合政策

    横山彰編著( Role: Contributor持続可能なブロードバンド・エコシステムについて―新たな規制枠組み―)

    中央大学出版部  2019.3 

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    Total pages:227   Responsible for pages:49-65   Language:Japanese   Book type:Scholarly book

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  • OTT産業をめぐる政策分析―ネット中立性,個人情報,メディア

    実積寿也, 春日教測, 宍倉学, 中村彰宏, 高口鉄平( Role: Joint author)

    勁草書房  2018.1 

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    Total pages:232   Language:Japanese   Book type:Scholarly book

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  • 通信産業の経済学2.0

    実積 寿也( Role: Sole author)

    九州大学出版会  2013.9 

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    Total pages:341   Language:Japanese   Book type:Scholarly book

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  • ネットワーク中立性の経済学-通信品質をめぐる分析-

    実積 寿也( Role: Sole author)

    勁草書房  2013.6 

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    Total pages:234   Language:Japanese   Book type:Scholarly book

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  • 通信産業の経済学

    実積 寿也( Role: Sole author)

    九州大学出版会  2010.12 

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    Total pages:276   Language:Japanese   Book type:Scholarly book

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  • IT投資効果メカニズムの経済分析-IT活用戦略とIT化支援政策

    実積 寿也( Role: Sole author)

    九州大学出版会  2005.8 

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MISC

  • ITを巡る日本の現状と、AI人材育成の課題ー「人工知能と法律」研究タスクフォース 2021年座談会ー

    鳥海不二夫, 宍戸常寿, 実積寿也, 加藤尚徳, 田中邦裕

    情報法制研究   ( 12 )   109 - 119   2022.11

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  • Economic Impact of Asymmetric Paid Peering: Implications of the Netflix vs. SK Broadband Dispute

    Toshiya Jitsuzumi

    SSRN Electronic Journal   2022

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    Language:English   Publishing type:Research paper, summary (international conference)   Publisher:Elsevier BV  

    DOI: 10.2139/ssrn.4178217

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Presentations

  • Does programming matter in Japanese high schools?: An analysis of 12 high school textbooks of Informatics I International conference

    Tanaka Ema, Tohyama Sayaka, Jitsuzumi Toshiya

    OCCE 2024  ( Bournmouth University, Bournmouth )   2024.2 

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    Event date: 2024.2 - 2024.3

    Language:English   Presentation type:Oral presentation (general)   Country:United Kingdom  

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  • AI条約のこと、知っていますか?ー欧州評議会による議論と日本の対応 Invited

    江間有沙, 中川裕志, 実積寿也

    六本木会議オンライン  2023.8 

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  • 動画配信をめぐる政策課題:fair contributionとローカルコンテンツ振興

    水越一郎, 実積寿也, 米谷南海

    JANOG52  2023.7 

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    Event date: 2023.7    

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  • Analysis of the acceptability of the "information health" concept: Consideration of the possibility of beneficiary payment International conference

    Koguchi Teppei, Jitsuzumi Toshiya

    32nd ITS European Conference  ( UNED, Madrid )   2023.6 

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    Event date: 2023.6    

    Language:English   Presentation type:Oral presentation (general)   Country:Spain  

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  • ネットワーク中立性原則とネットワーク投資をめぐる論点

    実積寿也

    公益事業学会2023年度全国大会  2023.6 

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  • 「情報的健康」実現に対する金銭的評価―サービスに対するWTPの推計―

    高口鉄平, 実積寿也

    2022年度秋季(第47回)情報通信学会大会  ( オンライン開催 )   2022.11  情報通信学会

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  • ローカルネットワーク費用は誰が負担すべきか:韓国 vs. NETFLIXから学べること Invited

    実積寿也

    沖縄ICTフォーラム2022in南大東島  ( 南大東村 多目的交流センター(沖縄県島尻郡南大東村) )   2022.11  JAIPA

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  • Economic Impact of Asymmetric Paid Peering: Implications of the Netflix vs. SK Broadband Dispute International conference

    Jitsuzumi, T.

    TPRC 2022  ( American University Washington College of Law (Washington DC, USA) )   2022.9  TPRC

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    Event date: 2022.9    

    Language:English   Presentation type:Oral presentation (general)   Country:United States  

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  • スプリンターネット

    水越一郎, 前村昌紀, 白畑真, 実積寿也

    JANOG50 Meeting  ( 函館アリーナ(北海道函館市) )   2022.7  Japan Network Operators' Group (JANOG)

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  • SVOD市場におけるPaid Peering導入の影響

    実積寿也

    2022年度春季(第46回)情報通信学会大会  ( オンライン開催 )   2022.6  情報通信学会

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  • Splinternet スプリンターネット – インターネットと国際政治の関係 Invited

    前村昌紀, 小宮山功一朗, 実積寿也

    GLOCOM六本木会議オンライン  ( オンライン開催 )   2022.6  GLOCOM

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  • Netflix vs ISP 韓国での訴訟とそのインパクト

    水越一郎, 趙 章恩, 実積寿也

    第53回JAIPAの集いin松山  ( リジェール松山(愛媛県松山市) )   2022.4  JAIPA

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    Language:Japanese   Presentation type:Symposium, workshop panel (public)   Country:Japan  

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  • COVID-19 and Japanese Media Market Invited International conference

    Jitsuzumi, T

    2nd IMMAA Topical Forum – Media Management in (Post?) Pandemic Times  ( Online )   2021.11  International Media Management Academic Association (IMMAA)

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  • 固定ブロードバンドの実効速度に関する分析

    実積寿也

    第71回2021 年度公益事業学会全国大会  ( 相模女子大学を開催校としてオンライン開催 )   2021.6  公益事業学会

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    Language:Japanese   Presentation type:Oral presentation (general)   Country:Japan  

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  • Japan’s new framework for net neutrality: The journey so far and future challenges International conference

    Jitsuzumi, T

    TPRC48  ( Online )   2021.2 

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    Language:English   Presentation type:Oral presentation (general)   Country:United States  

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  • 未成年者のネットリスク低減策に対する社会負担可能性の分析―SNS上の被害軽減システムを対象とした実証分析―

    田中大智, 実積寿也, 高口鉄平

    2020年度春季(第42回)情報通信学会大会  2020.7 

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  • ネット中立性規制の所得分配効果について―マルチエージェント・シミュレーションによる推定―

    実積寿也, 鳥海不二夫, 高口鉄平

    2020年度春季(第42回)情報通信学会大会  2020.7 

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  • Panel Session – A global perspective on international data transfer and non-personal data

    Panelists (Marcus, S., Li, M., Jitsuzumi, T., Dakal, J.)

    2020 ITS Online Conference  2020.6 

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  • A new framework for Japan's network neutrality: The government's proposal and remaining issues International conference

    Jitsuzumi, T

    ITS Bangkok 2019  ( JW Marriott Hotel Bangkok (Bangkok, Thailand) )   2019.10  International Telecommunications Society (ITS)

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  • Panelist for Forum Session "AI for ALL? Building on a global ecosystem to boost societal and economic potentials" Invited International conference

    ITU Telecom World 2019  ( Hungexpo (Budapest, Hungary) )   2019.9  International Telecommunication Union (ITU)

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  • 情報モラル施策に対する支払い意志額の推計

    実積寿也, 高口鉄平, 田中大智

    公益事業学会2019年度全国大会  ( 名古屋市立大学桜山キャンパス(愛知県名古屋市) )   2019.6  公益事業学会

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  • ネット中立性の現状

    情報法制学会第2回研究大会  ( 伊藤国際学術研究センター 伊藤謝恩ホール(東京都文京区) )   2018.12  情報法制学会(ALIS)

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  • Zero-rating and net neutrality in the mobile market: The case of Japan International conference

    46th Research Conference on Communications, Information and Internet Policy (TPRC46)  ( American Univeristy Washington College of Law (Washington, DC, USA) )   2018.9 

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  • Analysis of people's willingness to use personalization services in times of disaster International conference

    Koguchi, T., Jitsuzumi, T.

    29th ITS European Conference  ( University of Trento (Trento, Italy) )   2018.8  International Telecommunications Society (ITS)

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  • 研究開発と生産性の相関に関する実証研究:日本企業のミクロデータを用いた分析

    井上知義, 小林辰男, 加藤肇, 落合勝昭, 高口鉄平, 岩田一政

    情報通信学会 2018年度春季(第38回)学会大会  2018.7 

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  • インターネット接続の限定的喪失が経済活動へ及ぼす影響の分析―分析手法の検討および2017年8月25日の通信障害の実証分析―

    田中大智, 高口鉄平, クロサカタツヤ

    情報通信学会 2018年度春季(38回)学会大会  2018.7 

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  • 「The Fourで問う、デジタル複合寡占を生き抜く方法」にてパネリスト

    情報法制学会 通信政策セミナー  2018.3 

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  • ネットワークの中立性について

    第49回ISP&クラウド事業者の集いin下関  2018.3 

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  • New courses for new horses: Alternative approach for an OTT-based broadband ecosystem

    PTC'18  2018.1 

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  • Relationship between the amount of compensation for the leak of personal data and personal attributes

    Koguchi, T, Kasuga, N, Nakamura, A, Shishikura, M

    28th European Conference of the International Telecommunications Society  2017.8 

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  • 自治体公衆無線LANの防災利用に関する考察

    公益事業学会2017年度全国大会  2017.6 

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  • Strengthening e-commerce in the Asia-Pacific region: Opportunities and challenges

    Marcus, J.S, Petropoulos, G

    ITS Kyoto 2017  2017.6 

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  • Demand analysis for real-time and time-shifted viewing in the Japanese TV market

    Nakamura, A, Shishikura, M, Kasuga, N, Koguchi, T

    ITS Kyoto 2017  2017.6 

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  • Estimating the impact of PSTN migration: the case of eastern Japan

    Kurosaka, T, Osamura, K. Asaji, R, Koguchi, T, Shoji, M

    ITS Kyoto 2017  2017.6 

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  • ゼロレーティングを巡る議論:消費者のICTリテラシーと競争・イノベーション政策

    平成28年度生活経済学会九州部会例会  2016.11 

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  • Video streaming of Japanese TV broadcasters: Status-quo and challenges

    State of Telecom 2016  2016.10 

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  • Ten years of Japan's net neutrality policy: A review of the past and recommendations for the future

    44th Research Conference on Communications, Information, and Internet Policy (TPRC44)  2016.9 

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  • Analysis of the relation between a person's emotion and willingness to accept for leaks of personal data

    Koguchi, T

    27th European Regional ITS Conference  2016.9 

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  • Broadband development and network neutrality: Experiences and challenges in Japan

    International Workshop on ICT Development in East Asia  2016.8 

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  • Net neutrality and a competitive OTT market

    16th APT Policy and Regulatory Forum  2016.7 

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  • Lessons from Japan's municipal Wi-Fi projects: Business models and emergency controls

    21st ITS Biennial Conference  2016.6 

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  • 企業における有効なICT利活用の目的・方法に関する研究―通信利用動向調査を用いた実証分析―

    高口鉄平, 高地圭輔, 宮崎孝史, 柳谷昭夫

    第34回情報通信学会大会  2016.6 

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  • Broadband tax: the situation in Japan

    Workshop on International Legal and Political Feasibility of a Data Levy  2016.6 

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  • 経済学的に最適なセキュリティ水準

    情報法制研究所主催「情報法春季特別連続シンポジウム2016」  2016.5 

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  • ICT投資がもたらす企業パフォーマンス向上:投資目的の観点から

    日本経済研究センター主催「情報通信技術が変える経済社会研究会」セミナー  2016.4 

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  • 通信産業の構造変化とプラットフォーム機能をめぐる政策課題

    電子情報通信学会2016年総合大会  2016.3 

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  • ネットワーク中立性:基本フレームワークと最新動向

    日本インターネットプロバイダー協会主催「第44回ISP&クラウド事業者の集いin神戸」  2016.2 

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  • ネットワーク中立性と通信の秘密

    情報ネットワーク法学会第15回研究大会  2015.11 

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  • 今後の九州経済とIoT/industrie4.0との関わり

    九州経済産業局他共催「平成27年度第4次産業革命・IoTの動向と九州の産業研究セミナー第2回セミナー「情報革命がもたらす製造業の変革とその波及~IoT時代における九州の産業の課題~」  2015.11 

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  • スマート社会とデジタルマーケティングの未来

    トランスコスモス株式会社主催「BPOフォーラム Digital Marketing Day 2015 ―変革期をむかえたマーケティングの新潮流とは―」  2015.11 

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  • Demand analysis for time-shifted viewing in the Japanese TV market

    Kasuga, N, Nakamura, A, Shishikura, M, Koguchi, T

    2015 Regional Conference of the International Telecommunications Society  2015.10 

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  • Analysis of the economic value of leaks of personal data

    Koguchi, T, Kasuga, N, Nakamura, A, Shishikura, M

    2015 Regional Conference of the International Telecommunications Society  2015.10 

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  • Means and ends toward the broadband society: Net neutrality and over-the-top players

    2015 Regional Conference of the International Telecommunications Society  2015.10 

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  • Recent development of net neutrality conditions in Japan: Impact of fiber wholesale and long-term evolution (LTE)

    26th European Regional Conference of the International Telecommunications Society  2015.6 

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  • コネクテッドホームの価値に関する実証分析:HEMS活用サービスのケース

    高口鉄平, 高崎晴夫, 小野智弘, 多屋真人

    第32回情報通信学会大会  2015.6 

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  • ホームエネルギーマネジメントシステムのデータ価値に関する実証分析

    高口鉄平, 高崎晴夫, 小野智弘, 多屋真人

    公益事業学会第65回大会  2015.6 

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  • ネットワーク中立性とは何か?

    日本情報経営学会  2015.3 

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  • 公衆無線LAN整備をめぐる論点

    国際大学GLOCOM主催セミナー  2015.3 

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  • ネットワーク中立性とブロードバンド品質~経済学的観点からの分析~

    インターネットアーキテクチャ研究会第6回研究会  2014.12 

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  • OTT音声通話サービスをめぐる参入障壁の分析

    情報通信学会2014年度秋季個人研究発表  2014.11 

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  • ウエアラブルデバイス、IoTがもたらす産業変革

    福岡市および一般社団法人ブロードバンド推進協議会による共催 「OMC2014 in Fukuoka」  2014.10 

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  • Promoting competition in the voice communications market: Findings from an empirical analysis in the Japanese setting

    42th Research Conference on Communication, Information and Internet Policy (TPRC 2014)  2014.9 

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  • ネットワーク中立性~Netflix vs Comcast論争は日本で起こるのか?

    日本インターネットガバナンス会議主催セミナー  2014.8 

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  • ブロードバンド品質計測に関する考察

    第31回情報通信学会大会  2014.6 

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  • パーソナル情報をベースとしたパーソナライゼーションサービスにおける消費者選好に関する研究

    高崎晴夫, 高口鉄平

    第31回情報通信学会大会  2014.6 

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  • The economic value of location data: Conditions for big data secondary markets

    Koguchi, T

    25th European Regional Conference of the International Telecommunications Society  2014.6 

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  • 情報通信サービス利用とプライバシー懸念に関する経済分析

    高崎晴夫, 高口鉄平

    公益事業学会第64回大会  2014.6 

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  • マルチステークホルダープロセスの下での日本のインターネット政策

    慶應義塾大学国際インターネット政策研究会(KIPIS)他主催「マルチステークホルダー・インターネットガバナンス研究会」  2014.6 

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  • オープンデータ政策の経済効果について

    Innovation Nippon主催Innovation Nipponシンポジウム 2014年度第1回 『オープンデータの経済効果を考える:何を期待し、どう推進するか?』  2014.4 

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  • ネットワークの中立性とは

    日本インターネットプロバイダー協会主催「第40回ISPの集い」  2014.4 

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  • 仮想通貨エコシステム試論

    九州IT法研究会他共催「マルレク特別編:『BITCOINと分散暗号通貨を考える』」  2014.4 

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  • Fukuoka City Wi-Fi:整備の論点

    川崎市市議会議員超党派勉強会 講師  2014.2 

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  • ユニバーサルサービス制度について―利用者目線からの再構築―

    国際大学GLOCOM主催ワークショップ  2014.2 

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  • ネットワーク中立性の経済学

    米国社会科学研究評議会(SSRC)主催「安倍フェローシップコロキアム」  2013.12 

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  • 政策討論:データ活用、規制手法、教育、オープン化

    Innovation Nippon 主催「Innovation Nippon 展望イベント『日本の未来とイノベーション・ポテンシャルを考える』」  2013.12 

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  • The value of personal information in the e-commerce market

    Koguchi, T

    24th European Regional Conference of the International Telecommunications Society  2013.10 

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  • Network neutrality in Japan

    Asia Pacific Regional Internet Governance Forum  2013.9 

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  • モバイル端末上のコンテンツアグリゲーションモデルに係る経済分析

    高地圭輔

    公益事業学会第63回全国大会  2013.6 

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  • Do not put new wine into old bottles: Does the telecom framework need to change with OTT?

    A by-invitation Experts' Workshop "Theory of Broadband: Regulation, Networks and Applications"  2013.5 

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  • ISP市場の競争状況についての実証分析

    平成24年度生活経済学会九州部会  2012.10 

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  • スマートフォンにおけるコンテンツアグリゲーションのビジネスモデルについての経済分析

    高地圭輔

    日本地域学会第49回年次大会  2012.10 

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  • An analysis of prerequisites for Japan’s approach to network neutrality

    40th Research Conference on Communication, Information and Internet Policy (TPRC 2012)  2012.9 

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  • ブロードバンドISP市場の競争性に関する分析―日本型ネット中立性対策の前提条件の再検討―

    第29回情報通信学会大会  2012.6 

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  • パネルセッション「サイバー空間(インターネット)政策課題」にてパネリスト

    Pacific Telecommunications Council 主催「PTC Mid-Year Forum 2012」  2012.6 

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  • Network neutrality and competition in the ISP market: Japan’s case

    Pacific Telecommunications Council 主催「PTC Mid-Year Forum 2012」  2012.6 

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  • Network neutrality in Japan

    DigiWorld Summit 2011  2011.11 

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  • 携帯電話市場における利用者及び企業動向に関する考察

    高口鉄平

    日本地域学会第48回年次大会  2011.10 

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  • Study of user acceptance of secondary use of personal information for online services

    Takasaki, H

    International Telecommunications Society Asia-Pacific Regional Conference (ITS 2011)  2011.6 

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  • User preference for fixed vs. mobile Internet regarding quality of service: Its implications on mobile network neutrality

    International Telecommunications Society Asia-Pacific Regional Conference(ITS 2011)  2011.6 

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  • モバイル環境のQoSについての実証分析―ネット中立性問題へのインプリケーション―

    公益事業学会第61回全国大会  2011.6 

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  • ネット中立性問題におけるインセンティブ問題

    公益事業学会九州部会  2010.11 

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  • Incentive problems around net neutrality: Literacy on best effort QoS

    38th Research Conference on Communication, Information and Internet Policy (TPRC 2010)  2010.10 

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  • Economic effects of integration in broadband content market

    18th Biennial Conference of the International Telecommunications Society  2010.6 

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  • The network neutrality incentive problem and impact of QoS literacy

    18th Biennial Conference of the International Telecommunications Society  2010.6 

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  • ブロードバンド時代の消費者リテラシー ―ベストエフォート契約とネット中立性問題―

    生活経済学会九州部会  2009.11 

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  • ネットワーク中立性問題に対する実証分析―消費者のブロードバンドリテラシーの観点から―

    日本地域学会第46回年次大会  2009.10 

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  • モバイルインターネット事業におけるプラットフォーム機能に関する経済分析

    高地圭輔

    日本地域学会第46回年次大会  2009.10 

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  • Demand-based factors for broadband migration: The cases of Japan and Thailand

    Satitsamitpong, M, Otsuka, T, Mitomo, H

    Caribbean Regional ITS Conference 2009  2009.6 

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  • ネットワーク中立性論争に関する考察

    公益事業学会第59回全国大会  2009.6 

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  • Investment in broadband infrastructure: Impacts on economic development and network neutrality

    National Telecommunications Commission (NTC) International Conference 2009  2009.3 

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  • 信書便制度に関する一考察:電気通信制度との比較

    平成20年度生活経済学会九州部会  2008.11 

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  • 日本及びタイにおけるインターネットアクセス選択要因に関する分析

    大塚時雄, マニット-サティトゥサミトポン, 三友仁志

    日本地域学会第45回年次大会  2008.10 

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  • Issues in network neutrality and Japan's approach

    36th Research Conference on Communication, Information and Internet Policy (TPRC 2008)  2008.9 

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  • Efficiency and sustainability of network neutrality proposals

    17th Biennial Conference of the International Telecommunications Society  2008.6 

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  • Factors for success of Japanese telecom policy over the past decades

    日本地域学会第44回年次大会  2007.10 

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  • Impact of fixed-mobile convergence in Japan: Estimation of market size using empirical welfare analysis

    Nakamura, A

    18th European Regional ITS Conference  2007.9 

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  • 連関性を考慮した電話料金変化の厚生インパクトの実証的測定

    中村彰宏

    第24回情報通信学会大会  2007.6 

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  • Causes of inefficiency in Japanese railways: Application of DEA for management and policymaking

    Nakamura, A

    DEA Symposium 2007  2007.2 

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  • DEAを用いたわが国鉄道事業の非効率性要因の分析と最適補助金の検討

    日本OR学会「評価のOR」研究部会  2007.1 

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  • 加入需要行動を考慮した世帯の通話支出関数の推計

    生活経済学会九州部会  2006.11 

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  • Efficiency of local Japanese railway firms: A proposal for incentive-compatible subsidies

    Nakamura, A

    International Conference, 9th PRSCO Summer Institute  2006.7 

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  • ブロードバンドの普及に向けた政府の取組みに関する考察―タイを事例として―

    田尻信行, 岡崎毅

    第23回情報通信学会大会  2006.6 

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  • Impact of declining telephone calling rates on Tokyo metropolitan households

    Nakamura, A, Kawamura, M

    16th Biennial Conference of the International Telecommunications Society  2006.6 

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  • Factors that need to be taken into consideration to promote broadband diffusion and policies in developing countries: The case of Thailand

    Tajiri, N, Okazaki, T

    RSAI International Symposium and 37th Annual Conference of the Indian Regional Science Association  2006.1 

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  • Two decades of Japanese telecommunications policy: Factors for success

    RSAI International Symposium and 37th Annual Conference of the Indian Regional Science Association  2006.1 

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  • 通信産業政策の展開―2ndステージから3rdステージへ―

    産業学会西部支部2005年度部会  2005.10 

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  • Operational efficiency in the Japanese railway sector: Incentive-compatible subsidies and the impact of government intervention

    Nakamura, A

    19th Pacific Regional Science Conference  2005.7 

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  • 途上国におけるブロードバンドの普及について~タイを事例に~

    田尻信行, 岡崎毅

    第22回情報通信学会大会  2005.6 

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  • ボトルネック分離と競争政策について―信書サービスへのインパクトに関する考察―

    第22回情報通信学会大会  2005.6 

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  • 鉄道インフラ提供の効率性指標構築に関する検討―包絡分析法アプローチ―

    中村彰宏

    公益事業学会第55回大会  2005.6 

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  • Almost Ideal Demand Systemによる通話需要分析

    中村彰宏

    第22回情報通信学会大会  2005.6 

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  • 信書便事業自由化と郵政事業民営化に関する一考察

    平成16年度生活経済学会九州部会  2004.11 

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  • 携帯電話ナンバー・ポータビリティー導入が消費者のキャリア選択行動に与える影響の実証的研究

    大塚時雄, 三本松憲生, 森祐治, 三友仁志

    第21回情報通信学会大会  2004.6 

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  • ネットワーク産業規制の平行進化~信書便市場の競争促進策~

    第21回情報通信学会大会  2004.6 

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  • ITの有効活用戦略

    グローバル情報戦略研究会主催セミナー  2004.6 

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  • 情報化投資による日本企業の生産性向上に対する組織構造改革と人的資本形成の相乗効果に関する実証分析―企業アンケートデータを基礎として―

    唐澤徹, 三友仁志

    公益事業学会第2回関東部会  2003.12 

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  • 情報通信技術が買物交通需要パターンに与える影響の分析―学生の購買行動を中心として―

    大塚時雄, 染谷広幸, 三友仁志

    日本地域学会第40回年次大会  2003.11 

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  • 鉄道事業の公共性を考慮した線路使用料の決定方法に関する検討―DEAによる線路敷設・管理のヤードスティック指標の計測―

    中村彰宏

    日本交通学会第62回研究報告会  2003.10 

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  • IT investment in Japan: A look at the factors leading to underperformance

    Mitomo, H, Oniki, H

    14th Biennial Conference of the International Telecommunications Society  2002.8 

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  • わが国企業および産業におけるIT投資の効果発現メカニズムついて―micro-macro linkagesに関する日米比較―

    三友仁志, 鬼木甫

    日本地域学会第38回年次大会  2001.10 

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  • ITと企業

    長崎大学経済学部主催公開講座  2001.9 

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  • IT化の効果発現に関する考察:Micro-Macro Linkagesとその制約要因

    三友仁志, 鬼木甫

    第18回情報通信学会大会  2001.6 

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  • ヤードスティック競争による政策補助スキームの検討―ケーブルテレビネットワークインフラ構築の効率性計測―

    中村彰宏

    公益事業学会2001年度大会  2001.6 

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  • テレワークと都市構造

    都市公団茨城地域支社主催セミナー  2001.5 

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  • 情報通信技術によるSustainable Societyの実現可能性とわが国情報化投資の現状

    三友仁志, 鬼木甫

    第17回情報通信学会大会  2000.6 

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  • 電話サービスの支出弾力性と価格弾力性の計測

    河村真, 安藤正信

    日本経済学会2000年度春季大会  2000.5 

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  • Contributions of ICT to sustainable information society: Managerial, macroeconomic, and environmental impacts in Japan

    Mitomo, H, Oniki, H

    Conference on a Sustainable Information Society for the 21st Century  2000.2 

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  • アンケート調査に基づく世帯通話支出の分析

    大田耕史郎, 大石明夫

    日本地域学会第34回年次大会  1997.9 

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  • Impacts of telecommuting in Japan: Implications for mass transit congestion

    Mitomo, H

    The 5th World Congress of the RSAI  1996.5 

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Awards

  • 情報通信功績賞

    2020.6   情報通信月間推進協議会  

    実積寿也

  • 第17回情報通信学会論文賞優秀賞

    2016.6   情報通信学会   OTT音声通話サービスをめぐる参入障壁の分析:日本市場の例

    実積寿也

  • 公益事業学会2013年度学会賞

    2014.6   公益事業学会   ネットワーク中立性の経済学

    実積寿也

  • 日本地域学会第二十回著作賞

    2011.10   日本地域学会   通信産業の経済学

    実積寿也

  • 日本地域学会第十五回著作賞

    2006.10   日本地域学会   IT投資効果メカニズムの経済分析

    実積寿也

  • 情報通信学会第二回論文賞佳作

    2000.6   情報通信学会   アンケート調査に基づく世帯通話支出分析

    実積寿也, 太田耕史郎, 大石明夫

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Research Projects

  • Global Media & Internet Concentration Project International coauthorship

    2021.4 - 2027.3

    Social Sciences and Humanities Research Council of Canada (SSHRC)  Partnerdhip Grants: October 2020 Competition  Carleton University

    Jitsuzumi Toshiya

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    Authorship:Collaborating Investigator(s) (not designated on Grant-in-Aid)  Grant type:Competitive

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  • A handbook on ICT literacy education of high-schools in Japan: for bridging between elementary to advanced learning of APT member countries

    2022.4 - 2023.3

    Asia-Pacific Telecommunity (APT)  Grant for Publication of Research for Information Sharing on ICT Policy and Development for 2021 

    Jitsuzumi T, Tanaka E, Tohyama S, Aizawa S, Yurugi T, Uchiyama Y

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  • 未成年者のネットリスクを軽減する社会システムの構築

    2017.10 - 2021.3

    科学技術振興機構  受託研究費 

    鳥海不二夫

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    Authorship:Coinvestigator(s)  Grant type:Competitive

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  • スマート社会を支えるブロードバンドエコシステムに関する研究

    2016.4 - 2020.3

    文部科学省  科学研究費補助金(日本学術振興会・文部科学省)-基盤研究(C) 

    実積寿也

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    Authorship:Principal investigator  Grant type:Competitive

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  • ブロードバンド環境下のOTT主導型エコシステムに関する研究

    2013.4 - 2016.3

    文部科学省  科学研究費補助金(日本学術振興会・文部科学省)-基盤研究(C)  基盤(C) 

    実積寿也

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    Authorship:Principal investigator  Grant type:Competitive

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  • ブロードバンド環境下の最適エコシステムに関する研究

    2010.4 - 2013.3

    文部科学省  科学研究費補助金(日本学術振興会・文部科学省)-基盤研究(C)  基盤(C) 

    実積寿也

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  • 地域環境問題への貢献を視野に入れた情報化効果発現メカニズムの構築に関する研究

    2008.4 - 2012.3

    文部科学省  科学研究費補助金(日本学術振興会・文部科学省)-基盤研究(B)  基盤(B) 

    三友仁志

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  • ブロードバンド利用促進要因に関する国際比較研究

    2007.7 - 2010.6

    国際コミュニケーション研究奨励金 

    実積寿也

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    Authorship:Principal investigator  Grant type:Competitive

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  • 包絡分析法(DEA)の理論と応用に関する総合的研究

    2006.4 - 2009.3

    文部科学省  科学研究費補助金(日本学術振興会・文部科学省)-基盤研究(A)  基盤(A) 

    森田浩

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    Authorship:Coinvestigator(s)  Grant type:Competitive

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  • 消費行動における情報化効果の発現メカニズムと予測可能性に関する研究

    2005.4 - 2009.3

    文部科学省  科学研究費補助金(日本学術振興会・文部科学省)-基盤研究(B)  基盤(B) 

    三友仁志

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    Authorship:Coinvestigator(s)  Grant type:Competitive

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  • ネットワーク産業(信書便産業、電気通信産業等)規制の平行進化に関する調査及び研究

    2005.4 - 2009.3

    文部科学省  科学研究費補助金(日本学術振興会・文部科学省)-基盤研究(C) 

    実積寿也

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    Authorship:Principal investigator  Grant type:Competitive

    単独|rn|2005年4月1日~2009年3月31日

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  • ブロードバンド整備支援と競争促進を巡る通信政策の比較分析

    2007.9 - 2008.9

    安倍フェローシップ・プログラム 

    実積寿也

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  • わが国のITサービス市場および関連政策の実証分析

    2006.4 - 2007.3

    情報通信政策研究プログラム 

    実積寿也

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  • 情報化投資効果の発現メカニズムの理論的解明と予測可能性に関する研究

    2002.4 - 2006.3

    文部科学省  科学研究費補助金(日本学術振興会・文部科学省)-基盤研究(B)  基盤(B) 

    三友仁志

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Social Activities

  • [WATCHERS 専門家の経済講座]NTT法見直し 幅広く議論を

    読売新聞社  読売新聞  2024.2 -  

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  • [経済教室]NTT法改正の論点 通信政策の将来像設計、先決

    Role(s): Contribution

    日本経済新聞社  日本経済新聞  2023.11 -  

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  • 「ネットの自由守れ メタやGoogle、国家の遮断に回避策」記事内でのコメント

    Role(s): Media coverage

    日本経済新聞社  日本経済新聞  2023.2 -  

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  • 会合参加者による「責任あるAI」を実現する方策に関する意見交換

    Role(s): Panelist

    総務省、シンガポール共和国情報通信メディア開発庁との共催  日本・シンガポールのAIガバナンスに関するラウンドテーブル  慶應義塾大学三田キャンパス(東京都港区)  2022.10 -  

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    Audience: Company, Governmental agency

    Type:Other

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