1. Foundations of Digital Business -- 2. Mobile Business -- 3. Social Media Business -- 4. Digital Government -- 5. Fundamentals of Internet Technology and Human-Machine Applications -- 6. Digital Payment Systems, Security, and Regulation -- 7. Internet of Things -- 8. Artificial Intelligence,...

The digital economy has now a widespread impact on the whole economy and leads companies to transform and adopt new competition rules. Our objectives in this paper are:1) to analyze these evolutions and,2) to understand the role of informations systems in these changes. We have investigated two...