Redrawing the Boundaries on Purchasing Data from Privacy-Sensitive Individuals

  title={Redrawing the Boundaries on Purchasing Data from Privacy-Sensitive Individuals},
  author={Kobbi Nissim and Salil P. Vadhan and David Xiao},
We prove new positive and negative results concerning the existence of truthful and individually rational mechanisms for purchasing private data from individuals with unbounded and sensitive privacy preferences. We strengthen the impossibility results of Ghosh and Roth (EC 2011) by extending it to a much wider class of privacy valuations. In particular, these include privacy valuations that are based on (ε δ)-differentially private mechanisms for non-zero δ, ones where the privacy costs are… CONTINUE READING
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