A monopolist can use a 'tracking' technology that allows it to identify a consumer's willingness to pay with some probability. Consumers can counteract tracking by acquiring a `hiding' technology. We show in this note that consumers are collectively better off when this hiding technology is not available, even when consumers can acquire it free of charge.
Belleflamme, P. (2015). Monopoly price discrimination and privacy: the hidden cost of hiding (CORE Discussion Papers 2015/42). https://hdl.handle.net/2078.5/189158