strategically set termination fees to induce fragmentation. This takes place when advertising revenues are potentially large but … identify an important link between termination fees, the online advertising market and Internet fragmentation. We extend the … model to account for multi-homing consumers, vertically integrated ISPs, third-party advertising platforms and heterogeneous …

We study the relation between ad networks, consumer privacy and the online advertising market. We consider two …). We show that tracking may increase or decrease the provision of ads, depending on its effect on expected advertising …

classified advertising - across US counties between 1995 and 2009. This setting allows us to separate the effect of competition … for classified advertising from other changes brought about by the Internet, and to compare newspapers that relied more or …