| 研究課題/領域番号 |
23K12504
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| 研究機関 | 早稲田大学 |
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研究代表者 |
安 真理子 早稲田大学, 総合研究機構, その他(招聘研究員) (70974757)
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| 研究期間 (年度) |
2023-04-01 – 2027-03-31
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| キーワード | data analysis / corporate ownership / ownership structure |
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| 研究実績の概要 |
This project aims to provide insights into how changes in ownership structure affect corporate decisions. The uniqueness of this project is the use of a new regulation introduced in Japan in 2022, triggering the ownership structure of a wide range of public companies. Since regulations that affect the ownership structure of numerous companies are rare, a careful examination of how a firm's ownership structure evolves under the new regulation is a key theme of this project. After a thorough examination and comparison of several datasets that can be used for this project, I have come to the conclusion that the proprietary dataset of Toyo Keizai Inc. is the most desirable data for this study. By using a part of the KAKENHI funding, I have acquired from Toyo Keizai an ownership dataset covering the top 30 shareholders of all Japanese listed companies over the six-year period from March 2017 to March 2023. I am in the stage of exploratory data analysis (EDA), running tests to confirm the structure and the quality of the dataset. Inspecting the data has revealed that there are a number of missing values and entry errors. After omitting the erroneous data, a full refined dataset will be prepared for the next step of a tips case study where a fraction of the dataset will be used to develop and refine an analytical model.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
3: やや遅れている
理由
The progress of this research project is slightly delayed compared to my original plan. Due to conflicts with other research projects, I haven't been able to allocate enough time to make good progress on this project. I will try to resolve the delay in the summer of 2024.
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| 今後の研究の推進方策 |
The first milestone aimed for the second half of 2024 is to complete the exploratory data analysis and determine the model to analyse the association between the evolution of ownership changes triggered by the new regulation and a set of variables describing firm characteristics. The refined dataset, which will be categorised into founding-family ownership, managerial ownership, business group owners and asset managers, will be used to determine whether or not there is a systematic pattern of changes in ownership that can be explained by firm characteristics. The first draft of this paper should be completed by the end of 2024. The paper will then go through improvements via academic conference presentations in the following year.
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| 次年度使用額が生じた理由 |
The cost of acquiring the dataset needed for this project was lower than the original estimate because the dataset provider offered a discount. There is no concrete plan for the incurring amount to be used for this project in the next fiscal year.
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