Big Data Analysis in Net Market
| Project/Area Number |
17K01281
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Social systems engineering/Safety system
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| Research Institution | Kwansei Gakuin University |
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Principal Investigator |
Hiroaki Sandoh 関西学院大学, 総合政策学部, 教授 (40167440)
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| Co-Investigator(Kenkyū-buntansha) |
菊田 健作 兵庫県立大学, 経営学部, 非常勤講師 (30126487)
木庭 淳 兵庫県立大学, 社会情報科学部, 教授 (90177882)
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| Project Period (FY) |
2017-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | DV市場 / 店舗型小売市場 / 消費者余剰 / 小売業の余剰 / 社会厚生 / 通販 / 店舗型小売り / ネット通販 / ネット市場 / 楽天市場 / 需要関数 / 価格 / 店舗評価 / テキストマイニング / 数理モデル / 楽天トラベル / 商品評価データ / コーディングルール / 外部変数 / ネットワーク / 価格の安定性 / ビッグデータ / 楽天 / 評価データ |
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| Outline of Final Research Achievements |
At first, this project aimed to investigate the online shopping market by analyzing the huge size of data provided by a Japanese online shopping industry. It was, however, found that there is no correlation between the demand and the price. For this reason, we have changed our purpose to analyze the market consisting of the retail stores and DV(Direct Vendor), and built a mathematical model from a game theoretical point of view. The proposed model has clarified the conditions under which the social welfare becomes larger under the market with both DM and retail stores than that under the retail stores only. These conditions are easily satisfied in Japan as the internet environment is sufficiently realized.
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| Academic Significance and Societal Importance of the Research Achievements |
インターネット環境の充実により，オンラインショッピングをはじめとするDV(Direct Vendor)がより頻繁に利用されるようになってきた．このような状況を背景に，DVと店舗型小売との共存を通して，社会厚生が大きくなるための条件を明らかにした．DVの本格的参入により，消費者はより便利になる反面，小売り業界全体の余剰は減少するものの，消費者余剰と小売り業界の利益の合計である社会厚生が大きくなるという条件は，日本では既に満足されており，今後も進展すると考えられる．
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Report
(4 results)
Research Products
(19 results)
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[Journal Article] A PRICE STABILIZATION MODEL IN NETWORKS2017
Author(s)
J. Kiniwa, K. Kikuta, and H. Sandoh
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Journal Title
Journal of the Operations Research Society of Japan
Volume: 60
Issue: 4
Pages: 479-495
DOI
NAID
ISSN
0453-4514, 2188-8299
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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