, prices are zero - "free." On the other side of the market, Facebook's and Google's revenues are derived from advertising … definition of markets is central to the legal enforcement of antitrust statutes, the paper examines non-transactional multisided … advertised, - Increasing prices to consumers beyond the cost of advertising via the market power of the remaining firms in the …

-type consumers, who value content and advertising quality highly, may see more ads than lower-type consumers if the nuisance cost is …

control in two-sided media markets. Motivated by some actual merger cases, we also discuss how antitrust authorities might err …

theory of harm to define the audiovisual advertising ecosystem. Our investigation into the dynamics of this ecosystem and …