Concealed Data Practices and Competition Law: Why Privacy Matters

Why competition law matters to health care quality.

Competition law (encompassing both antitrust and consumer protection) is the forgotten stepchild of health care quality. This paper introduces readers to competition law and policy, describes its institutional features and analytic framework, surveys the ways in which competition law has influenced quality-based competition, and outlines some areas in need of further development. Competition la...

Security and Privacy: Why Privacy Matters

A long-overdue discussion of security and privacy is taking place within the US and among its friends and associates in many parts of the globe. In large part, this is due to the revelations of Edward Snowden, the employee of a government contractor, who leaked secret information about the extent of US government data collection on the calling habits of US residents. Privacy is often pitted aga...

Competition Law and Data

On the Privacy of Concealed Data Aggregation

A formal treatment to the privacy of concealed data aggregation (CDA) is given. While there exist a handful of constructions, rigorous security models and analyses for CDA are still lacking. Standard security notions for public key encryption schemes, including semantic security and indistinguishability against chosen ciphertext attacks, are refined to cover the multi-sender nature and aggregat...

Respecting Context to Protect Privacy: Why Meaning Matters.

In February 2012, the Obama White House endorsed a Privacy Bill of Rights, comprising seven principles. The third, "Respect for Context," is explained as the expectation that "companies will collect, use, and disclose personal data in ways that are consistent with the context in which consumers provide the data." One can anticipate the contested interpretations of this principle as parties repr...