We develop a model with many advertisers (products) and many advertising markets (media). Each advertiser sells to a … different segment of consumers, and each medium has a different ability to target advertising messages. We characterize the … competitive equilibrium in the media markets and evaluate the implications of targeting in advertising markets.An increase in the …

competition in the market of the advertisers' products may decrease the accuracy of the media outlet's reports. …

contents upon which advertisers are likely to share similar preferences; ii) In advertising industries characterized by high … correlation in products' qualities, an increase in the degree of competition may translate into a lower accuracy of news reports …; iii) A sufficiently high degree of competition in the market for news drives out commercial media bias. …

centre of a Hotelling line. Finally, we provide three applications of our results to monopoly advertising under a uniform …

We find display advertising influences customer search for both the advertised brand and its competitors. We exploit a … advertisers and reduce firms' investments in advertising …

We analyze data pricing and targeted advertising. Advertisers seek to tailor their spending to the value of each …