The technological revolution we have witnessed in recent years had led to the
appearance of a new term within the framework of the digital economy: Big Data. The rise
and consolidation of enterprises with major volumes of production based on business models
that involve the gathering and processing of personal data has caused misgivings amongst
the competition authorities, and has led to a conflict between defenders of the pro-
competitive nature of Big Data and those who take a more sceptical view, who have warned
of the possibility that these data policies may be used by companies as a tool for creating,
consolidating, and extending their positions of power in the market.
