NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Tatiana Komarova

Department Of Economics, London School of Economic
Houghton Street
London, WC2A 2AE, United Kingdom

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NBER Working Papers and Publications

April 2015Estimation of Treatment Effects from Combined Data: Identification versus Data Security
with Denis Nekipelov, Evgeny Yakovlev
in Economic Analysis of the Digital Economy, Avi Goldfarb, Shane M. Greenstein, and Catherine E. Tucker, editors
The security of sensitive individual data is a subject of indisputable importance. One of the major threats to sensitive data arises when one can link sensitive information and publicly available data. In this paper the authors demonstrate that even if the sensitive data are never publicly released, the point estimates from the empirical model estimated from the combined public and sensitive data may lead to a disclosure of individual information. Their theory builds on the work in Komarova, Nekipelov and Yakovlev (2011) where they analyze the individual disclosure that arises from the releases of marginal empirical distributions of individual data. The disclosure threat in that case is posed by the possibility of a linkage between the released marginal distributions. In this chapter, they...
 
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