Bergemann, Dirk; Bonatti, Alessandro - Cowles Foundation for Research in Economics, Yale University - 2010
competitive equilibrium in the media markets and evaluate the implications of targeting in advertising markets. An increase in the … targeting ability leads to an increase in the total number of purchases (matches), and hence in the social value of advertising …. Yet, an improved targeting ability also increases the concentration of firms advertising in each market. Surprisingly, we …