2005
The Demographics of the Do-Not-Call List
Hal Varian, Fredrik Wallenberg, Glenn Woroch, "The Demographics of the Do-Not-Call List," IEEE Security and Privacy, vol. 3, no. 1, pp. 34-39, (Jan. 2005)
Abstract
Data from do-not-call registries and other sources shows discernable patterns in the demographics of consumers who signed up for do-not-call lists. Such patterns might also be useful in analyzing the prospects for a do-not-spam registry.