2025/11/12 更新

写真a

コ セイ
胡 青
HU,Qing
所属
商学部 准教授
職名
准教授
外部リンク

学位

  • 博士 ( 神戸大学大学院 )

研究キーワード

  • 産業組織論、ビジネスエコノミクス

研究分野

  • 人文・社会 / 経済政策

学歴

  • 神戸大学   経済学研究科   経済学博士

    - 2016年3月

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所属学協会

委員歴

  • 日本経済政策学会 関東部会理事  

    2018年 - 2024年   

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論文

  • Profitable gray market with asymmetric costs 査読

    Qing Hu, Tomomichi Mizuno

    Applied Economics Letters   32 ( 16 )   2375 - 2379   2024年3月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:Informa UK Limited  

    DOI: 10.1080/13504851.2024.2332590

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  • Profitable Parallel Trade in Network Industries with Corporate Social Responsibility

    胡青

    釧路公立大学紀要第36号   111 - 118   2024年3月

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    掲載種別:研究論文(大学,研究機関等紀要)  

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  • Endogenous choice of price or quantity contract with upstream advertising 査読

    Qing Hu, Dan Li, Tomomichi Mizuno

    Metroeconomica   75 ( 1 )   34 - 51   2023年8月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    We investigate a supply chain comprising a manufacturer engaged in advertising and two retailers who compete with differentiated products. We examine the endogenous choice between competing on quantity or price for the retailers. Our analysis reveals that, depending on the level of product substitutability, the range of possible outcomes is varied and includes Cournot, Bertrand, and Cournot‐Bertrand under informative advertising. This result contradicts the established understanding that firms tend to engage in Cournot competition as their dominant strategy. Furthermore, we find that under persuasive advertising, Cournot or Bertrand outcomes may be optimal, but Cournot‐Bertrand never arises as an equilibrium.

    DOI: 10.1111/meca.12438

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  • Capacity choice with upstream investment 査読

    Qing Hu, Tomomichi Mizuno

    Managerial and Decision Economics   44 ( 8 )   4395 - 4403   2023年7月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    We consider a vertically related market with an upstream firm engaging in cost‐reducing investment and downstream firms competing on quantity. We analyze the capacity choice by downstream firms. We find that input price decreases with production capacity if many downstream firms exist or the investment is efficient. More importantly, in the previous research, it is shown that the duopolistic downstream firms always choose undercapacity in a vertical market with an upstream firm. However, we find that overcapacity occurs in equilibrium if the number of downstream firms is large or the upstream investment is efficient.

    DOI: 10.1002/mde.3956

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  • Input price discrimination in endogenous competition mode: comment 査読

    Qing Hu, Shuxiao Chen

    The Japanese Economic Review   75 ( 3 )   473 - 478   2023年5月

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    掲載種別:研究論文(学術雑誌)  

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  • Downstream Cross‐Holdings and Upstream R&D 査読

    Qing Hu, Aika Monden, Tomomichi Mizuno

    The Journal of Industrial Economics   70 ( 3 )   775 - 789   2022年3月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Cross‐holdings affect firms’ behavior in other vertically related markets. We consider a vertical market with two downstream firms and an upstream firm engaging in cost‐reducing R&D. Since downstream cross‐holdings weaken downstream competition, the upstream firm also decreases its investment. Hence, we find that as the degree of downstream cross‐holdings increases, input price increases and investment level decreases. Although cross‐holdings have this negative effect on downstream firms’ profits, they increase the downstream firms’ profits if the investment technology is inefficient. Finally, we show that with inefficient upstream investment, total surplus increases with cross‐holdings, while consumer surplus always decreases with cross‐holdings.

    DOI: 10.1111/joie.12257

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    その他リンク: https://onlinelibrary.wiley.com/doi/full-xml/10.1111/joie.12257

  • Upstream Advertising and Product Differentiation

    胡青

    釧路公立大学地域研究第29号   127 - 132   2021年3月

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    掲載種別:研究論文(大学,研究機関等紀要)  

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  • Positive Effects of Bundling on Rival's Profit and Social Welfare in a Vertical Relationship 査読

    Qing Hu, Tomomichi Mizuno

    Economics Bulletin   41 ( 1 )   85 - 92   2021年3月

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    掲載種別:研究論文(学術雑誌)  

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  • Input price discrimination with passive partial ownership 査読

    Qing Hu, Tomomichi Mizuno, Junghyun Song

    Applied Economics Letters   29 ( 8 )   713 - 717   2021年2月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:Informa UK Limited  

    DOI: 10.1080/13504851.2021.1884831

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  • Endogenous timing and manufacturer advertising: A note 査読

    Qing Hu, Tomomichi Mizuno

    Metroeconomica   72 ( 2 )   309 - 320   2020年10月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    We consider a vertical market comprising of a manufacturer engaging in advertising and two retailers offering differentiated products. We analyze the endogenous order of moves for the retailers and demonstrate that they may choose a more competitive environment: simultaneous pricing under Bertrand competition or sequential producing under Cournot competition. This result is robust even if we extended our model to third‐degree wholesale price discrimination and persuasive advertising.

    DOI: 10.1111/meca.12321

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    その他リンク: https://onlinelibrary.wiley.com/doi/full-xml/10.1111/meca.12321

  • A note on endogenous competition mode with managerial‐unionized firms: Comment 査読

    Qing Hu

    Metroeconomica   71 ( 1 )   289 - 291   2019年5月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    DOI: 10.1111/meca.12258

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    その他リンク: https://onlinelibrary.wiley.com/doi/full-xml/10.1111/meca.12258

  • A Note on the Quadratic Hotelling Model with Network Externalities

    胡青

    釧路公立大学地域研究第28号   137 - 140   2019年3月

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    掲載種別:研究論文(大学,研究機関等紀要)  

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  • Network Externalities and Bundling 査読

    Qing Hu

    Journal of Game Theory   7 ( 2 )   23 - 26   2018年12月

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.5923/j.jgt.20180702.01

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  • Network Externalities and Royalty Licensing 査読

    Qing Hu

    Management   8 ( 4 )   95 - 98   2018年12月

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.5923/j.mm.20180804.01

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  • Network Externalities and Cross Ownership 査読

    Qing Hu

    Microeconomics and Macroeconomics   6 ( 2 )   50 - 53   2018年12月

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.5923/j.m2economics.20180602.03

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  • R&D in a Mixed Duopoly in China

    Qing Hu

    Bulletin of International Pacific University   11   239 - 241   2017年3月

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    掲載種別:研究論文(大学,研究機関等紀要)  

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  • Bundling and Consumers’ Reservation Value: Effects on Market Entry 査読

    Qing Hu

    Technology and Investment   6   77 - 81   2015年2月

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.4236/ti.2015.61008

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  • Bundling and Quality Disclosure in a Bayesian Game 査読

    Qing Hu

    Journal of Game Theory   4 ( 1 )   13 - 17   2015年1月

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.5923/j.jgt.20150401.03

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  • Reservation Price and Bundling for a Multiproduct Monopoly 査読

    Qing Hu

    American Journal of Economics   5 ( 1 )   37 - 42   2015年1月

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.5923/j.economics.20150501.05

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  • Bundling of Non-complementary Products 査読

    Qing Hu

    Microeconomics and Macroeconomics   3 ( 1 )   1 - 6   2015年1月

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.5923/j.m2economics.20150301.01

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▼全件表示

講演・口頭発表等

  • Bundling of multiproduct monopoly: Effect on market entry under firm specific preferences

    胡青

    日本経済政策学会第71回全国大会 

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  • Bundling of non-complementary products in a duopoly market

    胡青

    84th Annual Meeting of Southern Economic Association 

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    記述言語:英語  

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  • Bundling of non-complementary products

    胡青

    Singapore Economic Review Conference 2013 

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    記述言語:英語  

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  • Consumers’preference and the effect of bundling for a multiproduct monopoly to deter and blockade entry

    胡青

    2013 Annual Meeting of the Association of Southern European Economic Theorists 

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    記述言語:英語  

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  • Consumers’preference and bundling of a multiproduct monopoly to foreclose the competitive market

    胡青

    The 12th International Conference of the Japan Economic Policy Association 

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    記述言語:英語  

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受賞

  • 岸本賞

    2015年4月   神戸大学  

    胡青

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  • 凌霜賞

    2013年6月   六甲台後援会  

    胡青

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担当経験のある科目(授業)

学術貢献活動

  • 国際学術論文査読

    役割:査読

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  • 学会討論者

    役割:査読

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