The document discusses challenges that regulators face with the digital economy and sharing economy. It summarizes the European Commission's approach which focuses on soft law and ensuring a level playing field. It questions whether all platforms are alike and if traditional concepts need redefining. The role of platforms is examined in relation to the freedom to provide services and liability. Reflections are provided on whether new legal concepts or public interest goals are needed given that sharing economy concepts may not be useful legally. It concludes distinguishing different digital business models is important for sound regulation.