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| Title: | Finding a Needle in a Haystack: The Theoretical and Empirical Foundations of Assessing Disclosure Risk for Contextualized Microdata |
| Authors: | Witkowski, Kristine M. |
| Keywords: | confidentiality
data dissemination |
| Issue Date: | Jun-2008 |
| Series/Report no.: | ICPSR Working Papers Series
4 |
| Abstract: | Contextualized microdata are one way to safely release geographic data without identifying the location of survey respondents. This study informs the design of such datafiles with its needle-in-haystack approach to disclosure and its discussion of associated methodological concerns. Drawing a sample of counties, tracts, and blockgroups, I illustrate how
the reidentification of individuals is shaped by aggregating geographies into look-alike sets. I detail the complexity of reidentification patterns by assessing the likelihood that young adult white and black males would be pinpointed within reconstituted haystacks given: (1) the size of the total population of aggregated contexts; (2) the amount of error in population counts; and (3) differential search costs stemming from spatially dispersed contexts. |
| URI: | http://hdl.handle.net/2027.42/58628 |
| Appears in Collections: | Inter-university Consortium for Political and Social Research (ICPSR)
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Files in This Item:
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Description |
Size | Format | |
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| ICPSR-WP-No4-Witkowski.pdf | | 474Kb | Adobe PDF | View/Open |
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