Participants provided an in-depth look at a number of topics ranging from the role of licensing and penalties for infringing on licensing agreements to the potential of data linking (e.g., between survey and administrative data), particularly the technical, legal, and statistical arrangements that would be needed to promote linking within and between agencies and between government and private-sector data producers. The panel’s workshop followed up on many of the topics discussed in the 1999 workshop, but the focus was less on what agencies are currently doing and more toward emerging opportunities, specifically relating to research access to longitudinal microdata. The report of that workshop, Improving Access to and Confidentiality of Research Data (National Research Council 2000), provided a starting point for the panel’s work. Tradeoffs between research and other data user needs and confidentiality requirements were articulated, as were the relative advantages and costs of data alteration techniques versus restricted (physical) access arrangements. In 1999 the Committee on National Statistics (CNSTAT) held a workshop focused on the procedures used by agencies and organizations for releasing public-use microdata files and for establishing restricted access to nonpublic files.
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