DOI Naoshi

Researcher Information

Affiliation

Department of Economics

Job Title

• Professor

URL

https://sites.google.com/site/doinaoshi1983/

J-Global ID

• 201701003601161400

Research Areas

• Humanities & social sciences / Economic policy

Academic & Professional Experience

• 2022/10 - Today  Otaru University of CommerceProfessor
• 2025/09 - 2026/09  the University of BarcelonaVisiting Scholar
• 2025/09 - 2026/09  the University of BarcelonaVisiting Scholar
• 2019/09 - 2022/09  Otaru University of CommerceAssociate professor
• 2018/04 - 2019/08  Sapporo Gakuin UniversityAssociate professor
• 2012/04 - 2018/03  Sapporo Gakuin UniversityLecturer, Associate professor

Published Papers

• Effects of international airline alliances on domestic–international connecting passengers in Japan

  Naoshi Doi

  Economics of Transportation Elsevier BV 46-47 100460  2212-0122 2026/06 [Reviewed]
   Scientific journal
• Externality and policy intervention in interregional travel with infectious diseases

  Naoshi Doi; Shingo Yamazaki

  Health Economics 34 (1) 68 - 84 1057-9230 2025/01 [Reviewed]
   Scientific journal
• A simple method to estimate discrete-type random coefficients logit models

  Naoshi Doi

  International Journal of Industrial Organization 81 102825  0167-7187 2022/03 [Reviewed]
   Scientific journal
• Choice of Policy Instruments with Endogenous Quality: Per‐Passenger and Per‐Flight Airport Charges in Japan

  Naoshi Doi

  Journal of Industrial Economics Wiley 70 (1) 44 - 88 0022-1821 2022/03 [Reviewed]
   Scientific journal
• Electronic word-of-mouth: a survey from an economics perspective

  Naoshi Doi; Hitoshi Hayakawa

  International Journal of the Economics of Business 27 (2) 303 - 320 1357-1516 2020/07 [Reviewed]
   Scientific journal
• Market Structure and Product Quality: A Study of the 2002 Japanese Airline Merger

  Naoshi Doi; Hiroshi Ohashi

  International Journal of Industrial Organization 62 158 - 193 2019/01 [Reviewed]
   Scientific journal
• Empirical analysis of the national treatment obligation under the WTO: The case of Japanese shochu

  Naoshi Doi; Hiroshi Ohashi

  JOURNAL OF THE JAPANESE AND INTERNATIONAL ECONOMIES 46 43 - 52 0889-1583 2017/12 [Reviewed]
   Scientific journal
• Mutual influence across routes using a common airport: The case of the domestic market in Japan

  Naoshi Doi

  JOURNAL OF AIR TRANSPORT MANAGEMENT 40 132 - 136 0969-6997 2014/08 [Reviewed]
   Scientific journal

Books etc

• ネットワーク効果：空港利用の間接ネットワーク効果の実証分析 （「進化するビジネスの実証分析 (経済セミナー増刊)」 Chapter 14）

  土居 直史 経済セミナー編集部 編 2020/04 144 122-130
• リストラクチャリングとその帰結－2000年代初頭の検証結果から（「日本経済 変革期の金融と企業行動（堀内昭義・花崎正晴・中村純一編）」 第2章、共訳）

  田中 晋矢; 田中 茉莉子; 土居 直史 東京大学出版会 2014/09

MISC

• Pass-Through with Quantity Discounts: A New Edgeworth-Salinger Paradox

  Takanori Adachi; Naoshi Doi  Kyoto University, Graduate School of Economics Discussion Paper  E-26-002-  2026/09
• Pass-Through with Endogenous Quality: An Incentive Decomposition

  Naoshi Doi; Tetsuya Shinkai  SSRN Electronic Journal  2026/09
• Optimal Multiple Airport Charges under Airline Market Power considering the Marginal Cost of Public Funds

  Naoshi Doi; Tatsuhito Kono; Izumo Suzaki  SSRN Electronic Journal  2026/06
• Pass-Through, Quality Adjustment, and Imperfect Competition

  Takanori Adachi; Naoshi Doi  Kyoto University, Graduate School of Economics Discussion Paper  E-25-013-  2026/02
• Individual vs. Integrated Privatization of Complementary Airports under Air-Rail Competition

  Naoshi Doi; Akio Kawasaki; Shingo Yamazaki  SSRN Electronic Journal  2026/02
• 古米在庫増加時における価格下落率の銘柄間差異

  井上仁; 土居直史; 佐々木達  札幌学院大学経済論集  (23)  1  -18  2025/11
• Cost and Demand Effects of Legal Adult Prostitution on Child Sex Trafficking

  Naoshi Doi; Masahiro Shoji; Kenmei Tsubota; Md. Sanaul Haque Mondal  SSRN Electronic Journal  2025/11
• Pass-through with Endogenous Quality: The Role of Demand Functional Form

  Naoshi Doi; Tetsuya Shinkai  SSRN Electronic Journal  2025/10
• A Review of Research on Pass-through with Endogenous Quality

  Naoshi Doi  The journal of economics of Kwansei Gakuin University  78-  (3)  187  -206  2024/12  [Invited]
  
• Price and Quality Decision of a Monopoly Platform for Transaction with Shipping

  Tetsuya Shinkai; Naoshi Doi  Kwansei Gakuin University Discussion Paper  2023/07
• Airline Industry in Japan : An Overview

  土居 直史  札幌学院大学経済論集  (10)  29  -44  2015/10
• How Did the Import Liberalization Affect Beef Prices in Japan?

  土居 直史  札幌学院大学経済論集  (6)  25  -39  2013/10

Awards & Honors

• 2020/10 Miyazawa Kenichi Memorial Award
  
• 2019/06 The Best Paper by a Junior Researcher Prize of the ITEA Annual Conference
  
• 2009/11 第4回応用計量経済学コンファレンス最優秀論文賞
  
• 2006/03 第23回横浜国立大学経済学会賞（本行賞）優秀賞
  

Research Grants & Projects

• The Role of Media, Social Norms, and Government in Humanitarian Issues Affecting Women and Children: Evidence from Developing Countries

  Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research

  Date (from‐to) : 2026/04 -2031/03 

  Author : 庄司 匡宏; 土居 直史; 坪田 建明
• 企業による品質決定がある場合の費用負担の帰着：航空産業における排出権取引

  日本学術振興会：科学研究費助成事業

  Date (from‐to) : 2025/04 -2028/03 

  Author : 土居 直史
• 人口動態下の都市交通インフラ整備維持と国・地方・公共団体によるその財源調達最適化

  日本学術振興会：科学研究費助成事業

  Date (from‐to) : 2024/04 -2028/03 

  Author : 河野 達仁; 土居 直史; 文 世一; 毛利 雄一; 羅 婉慈; 高山 雄貴
• 企業による品質決定を考慮したパススルーに関する研究

  日本学術振興会：科学研究費助成事業

  Date (from‐to) : 2023/04 -2028/03 

  Author : 土居 直史
• 両面市場プラットフォームサービスの質・価格差別戦略と市場競争に関する理論的研究

  日本学術振興会：科学研究費助成事業

  Date (from‐to) : 2024/04 -2027/03 

  Author : 新海 哲哉; 猪野 弘明; 土居 直史; 北村 亮真
• 企業による品質決定を考慮した場合のパススルーおよび帰着についての実証分析

  Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research Grant-in-Aid for Early-Career Scientists

  Date (from‐to) : 2020/04 -2023/03 

  Author : 土居 直史
• Theoretical and Empirical Study on the Effects of Peer-to-peer Transactions on Competition in the Sharing Economy

  Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

  Date (from‐to) : 2019/04 -2022/03 

  Author : 土井 教之; 猪野 弘明; 土居 直史; 北村 亮真; 新海 哲哉; 松村 敏弘; 加藤 雅俊
• 航空会社間の競争と地方政府間の競争の関係及び空港管理主体の違いがもたらす効果

  Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)

  Date (from‐to) : 2019/04 -2022/03 

  Author : 山崎 慎吾; 土居 直史
• An Empirical Study on Pass-through and Incidence of Airport Charges

  Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B)

  Date (from‐to) : 2017/04 -2020/03 

  Author : Doi Naoshi
• Theoretical and Empirical Study on a Two-Sided Market with Innovation and Network Externality

  Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

  Date (from‐to) : 2015/04 -2018/03 

  Author : DOI Noriyuki

Academic Contribution

• Sapporo Workshop on Industrial Economicsの企画・運営

  Date (from-to) :2018-Today

  Organizer, responsible person: 石原 章史（東京大学）; 北野 泰樹（青山学院大学）; 土居 直史（小樽商科大学）
• 応用地域学会プログラム委員

  Date (from-to) :2024/11/30-2024/12/01

Other link

researchmap

https://researchmap.jp/doinaoshi