This paper studies the effect of advertising on content differentiation on YouTube, the second-most visited website in … the world. I demonstrate that an exogenous increase in the feasible advertising quantity leads to a considerable decrease …; thus, viewers who perceive advertising as a nuisance – and therefore as an implicit price they have to pay – could easily …

We quantify the prevalence of undisclosed influencer posts on Twitter across a large set of brands based on a unique … brands with a large Twitter following and are posted from smaller accounts that generate higher engagement per follower. …

We study consumer response towards sponsored search advertising and how to improve advertising performance on a large e … suggest that consumers dislike search advertising in our setting, but quality certificates mitigate this aversion and increase … advertising sales. …

We study the effects of taxation on the international online advertising market, using data on Facebook ad prices …

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 …