This article analyses the crucial role of user data for digital markets contestability and presents policy proposals devised to address growing concerns about the dominance of data-rich incumbents in digital markets. To this end, we discuss a data-driven theory of harm that would warrant ex-ante...

"This book contains an overview of new achievements in the field of e-business standards and protocols, offering in-depth analysis of and research on the development and deployment of cutting-edge applications"--Provided by publisher.