We present a model of a market failure based on a requirement provision by digital platforms in the acquisition of personal information from users of other products/services. We establish the economic harm from the market failure and the requirement using traditional antitrust methodology....

The digitisation of existing business models and the new way of doing business of digital platforms pose new challenges both to the performance of companies in the market and to the lives of consumers and users. The dominant digital companies are all American (Google, Facebook, Amazon, and...

Dominant digital platforms such as Google and Facebook collect personal information of users by default precipitating a market failure in the market for personal information. We establish the economic harms from the market failure. We discuss conditions for eliminating the market failure and...

Antitrust cases related to privacy are on the agenda of many competition authorities worldwide, including Europe, the United States, the United Kingdom (the UK), India, Turkey, Germany, and France. Antitrust and privacy is thus "one of the big topics of the year," as stated by the former...

This thesis addresses Big Data issues in competition law in three chapters. Chapter one proposes new economic tools to define the relevant market and the market power in the data-driven economy. It argues the need to reform the relevant market and the market power by considering new tools and a...

Development in generative artificial intelligence chatbots like ChatGPT forces search engine providers to move from search to answer engines. Unlike search engines that provide search results of content creators via blue links, answer engines generate personalised answers through a conversation...

We show that the rise in ebook prices following Apple's entry into the market can be explained by Amazon's Kindle device losing its essential position. When consumers began accessing Amazon's ebooks using third-party devices, such as the iPad, Amazon's incentive to keep ebook prices low...

When Apple entered the ebook market, prices rose. A recent court decision found Apple guilty of colluding with publishers, blaming the price hike, in part, on agency agreements and prohibiting their use. Building a model to compare these with traditional wholesale agreements, we identify a...

In recent years, several competition authorities around the world have announced majorinvestigations into potential anti-competitive behaviour by digital platforms. Not all ofthat behaviour harms downstream consumers. This has contributed to a growing ‘existentialcrisis’ at the foundation of...

The recent Microsoft antitrust case had many profound implications, one of which was possible insight into the changing role of economics in antitrust. Microsoft started out as a "post-Chicago" theoretical case in which game theory and asymmetric information models suggested the software firm...