This article by the Boston Consulting Group (BCG) is made up of 5 parts:
Part 1: digital identity: a driver of growth, a consumer hazard or both
Part 2: a definition of digital identity and how consumers really see it
Part 3: the value of digital identity - for organizations and consumers
Part 4: the megatrends of digital identity
Part 5: a practitioner's guide to the future of digital identity
but most striking part for me was at the beginning: when the article mentioned: data explosion is possible because of four reasons: social media boom; the internet of things; online data transactions; and digital service and media
and the direction towards the economic value of the digital identity