The Effects of Personal Data Management on Competition and Welfare

Material type: 文書・図像類

Author: Cong, Jiajiaほか

Publisher: The Institute of Social and Economic Research, Osaka University

Publication date: 2023-03

Material Format: Paper

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Note (General)：: This study examines how consumers’ personal data management affects firms’ competition in the data collection and data application markets and welfare...

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Paper

Material Type: 文書・図像類
Title: The Effects of Personal Data Management on Competition and Welfare
Author/Editor: Cong, Jiajia
Matsushima, Noriaki
Author Heading: Cong, Jiajia
Matsushima, Noriaki
https://nrid.nii.ac.jp/nrid/1000080334879
Publication, Distribution, etc.: The Institute of Social and Economic Research, Osaka University
Publication Date: 2023-03
Publication Date (W3CDTF): 2023-03
Periodical title: Institute of Social and Economic Research Discussion Papers
No. or year of volume/issue: 1201
Volume: 1201
Pages: 1-55
ISSN (Periodical Title): PISSN : 0473453X
EISSN : 24350982
Text Language Code: eng
Subject Heading: privacy management
data collection
data application
price discrimination
privacy laws
Target Audience: 一般
Note (General): This study examines how consumers’ personal data management affects firms’ competition in the data collection and data application markets and welfare outcomes. Consumers purchase products from differentiated firms in two markets. Firms compete to collect consumer data first to predict their preferences in the data application market, where each firm offers personalized prices to its targeted consumers and a uniform price to untargeted consumers. Before firms offer prices, their targeted consumers can erase data to become untargeted for a fixed cost. We show that consumers’ privacy management mitigates price competition, reduces firms’ profits, and harms consumer surplus and social welfare in the data application market; privacy management intensifies competition and improves consumer surplus in the data collection market. Across these two markets, profits and social welfare decline. The change in consumers’ two-market surplus depends on their foresight regarding the outcomes in the data application market, with only forward-looking consumers having a higher surplus. We extend the model in several directions, including data-enabled product personalization, privacy costs, data portability, and data ownership, and discuss the implications for privacy laws.
References (URI): URI
https://www.iser.osaka-u.ac.jp/library/dp/2023/DP1201.pdf
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 大阪大学 : 大阪大学学術情報庫　桜華