Case studies on digital transformation : research on the impact of digital technologies and digital platforms on the economy Digital transformation (DT) has not only been a major challenge in recent years it is also supposed to continue to enormously impact our society and economy in the forthcoming decade. On the one hand digital technologies have emerged diffusing and determining our private and professional lives. On the other hand digital platforms have leveraged the potentials of digital technologies to provide new business models. These dynamics have a massive effect on individuals companies and entire ecosystems. Digital technologies and platforms have changed the way persons consume or interact with each other. Moreover they offer companies new opportunities to conduct their business in terms of value creation (e.g. business processes) value proposition (e.g. business models) or customer interaction (e.g. communication channels) i.e. the three dimensions of DT. However they also can become a threat for a companys competitiveness or even survival. Eventually the emergence diffusion and employment of digital technologies and ...