Competition, Defaults, and Antitrust Remedies in Digital Search

The rapid growth in digital platforms and information technology are greatly affecting how consumers discover and purchase products, making online markets the most attractive advertising media for firms. The business model of most digital platforms where online ad is sold is that of a two-sided market, where one group has preferences regarding the number of users in the other group. This positive cross-side network effect endows dominant platforms with huge comparative advantages and this “