In communication, information, and other industries, three-part tariffs are increasingly popular. A three-part tariff is defined by an access price, an allowance, and a marginal price for any usage in excess of the allowance. Empirical nonlinear pricing studies have focused on consumer choice...

In the nineties the disconnection between physical experience and the digital networked experience was celebrated - individuals were said to move into cyberspace, become virtual and leave the constraints of the physical realm. Despite the very real existence of tracking and surveillance...