NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Lesley Chiou

Occidental College
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Los Angeles, CA 90041
Tel: 323-259-2875

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NBER Working Papers and Publications

September 2017Search Engines and Data Retention: Implications for Privacy and Antitrust
with Catherine Tucker: w23815
This paper investigates whether larger quantities of historical data affect a firm's ability to maintain market share in Internet search. We study whether the length of time that search engines retained their server logs affected the apparent accuracy of subsequent searches. Our analysis exploits changes in these policies prompted by the actions of policymakers. We find little empirical evidence that reducing the length of storage of past search engine searches affected the accuracy of search. Our results suggest that the possession of historical data confers less of an advantage in market share than is sometimes supposed. Our results also suggest that limits on data retention may impose fewer costs in instances where overly long data retention leads to privacy concerns such as an individu...
July 2015Content Aggregation by Platforms: The Case of the News Media
with Catherine Tucker: w21404
The digitization of content has led to the emergence of platforms that draw information from multiple sources. Policymakers are concerned that these new platforms threaten incentives for the production of original content. As a result, policymakers are contemplating regulations that would force aggregation platforms to pay or require an explicit "opt-in" for content providers. To understand the possible consequences and underlying rationale of such laws, we explore whether aggregation of content by a single platform encourages users to "skim" content or to investigate in depth. We study a contract dispute that led a major aggregator to remove information from a major content provider. We find that after the removal, users were less likely to investigate additional, related content in depth...

Published: Lesley Chiou & Catherine Tucker, 2017. "Content aggregation by platforms: The case of the news media," Journal of Economics & Management Strategy, .

 
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