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クロダ トシフミ
KURODA Toshifumi
黒田 敏史 所属 東京経済大学 経済学部 職種 准教授 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2023/09 |
| 形態種別 | 研究論文（学術雑誌） |
| 査読 | 査読あり |
| 招待論文 | 招待あり |
| 標題 | Relevant markets and market power of mobile apps |
| 執筆形態 | 共著 |
| 掲載誌名 | Japan and the World Economy |
| 掲載区分 | 国外 |
| 巻・号・頁 | 67 |
| 担当範囲 | 全部 |
| 国際共著 | 国際共著 |
| 著者・共著者 | Kohei Kawaguchi
Toshifumi Kuroda Susumu Sato, |
| 概要 | Antitrust investigations in the mobile app economy often require a definition of the relevant market of mobile apps and the evaluation of their market power. However, existing antitrust tools face significant challenges due to the non-price nature of mobile apps with multiple revenue sources, two competition margins at the mobile OS and mobile app levels, and the switching costs involved in the choice of mobile OSs. In this paper, we provide a description of the mobile app economy, including its essential components, players, and characteristics, and identify the challenges currently observed in antitrust investigations. We propose a model for mobile app users and advertisers that can address these issues and suggest a method for defining the relevant market of mobile apps and evaluating their market power, which is adaptable to markets with zero-priced products or multiple revenue sources beyond mobile apps. |
| researchmap用URL | https://www.sciencedirect.com/science/article/pii/S092214252300035X |