authorities) . On the user side of the market, prices are zero – "free." The other side, advertising rates are "hidden." Facebook …. Facebook and Google Herfindahl-Hirschman indices (HHI) are high, indicating a concentrated market or highly concentrated market …

-sided markets, their economic rents are "hidden" from the public . On the user side of the market, prices are zero – "free." The … (HHI) are high, indicating a concentrated market or highly concentrated market by several different definitions of their … markets. For example, Google has 93 percent of the search market. Combined Google and Facebook currently control over half of …

goal of the state and associated institutions is to encourage competition and to avoid any activities that place market …Competition and a competitive environment serve as a crucial foundation for the effective use of resources and the … goods. Customers may obtain more advantages at a lesser cost and of better quality when there is a strong competition. The …

antitrust policy in Ukraine from 1992 to 2003, and describes the role of Ukrainian competition authority in the development of … competition. This paper shows that on the one hand, rules and appropriate procedures, as well as the institutional framework have … general, and to the problems of the development of competition in particular. The actions of different state organs were not …