The unique challenges associated with understanding network industries requires insights from a range of disciplinary perspectives, namely economics, engineering, law, and political science. This book analyzes the de- and re-regulation of the network industries and the regulatory challenges these industries will face in the future. Network industries are characterised by economics that entail limiting effects on competition and market creation, and the book highlights the drivers behind their liberalization as well as the inherent need for regulation as liberalization unfolds. By way of an historical approach, the author offers insights into the distinctive approaches between Europe and North America in the past whilst also presenting the pervasive role digitalization increasingly comes to play. A concise overview of the state of thinking about the network industries, this book will be vital reading for researchers, advanced students and practitioners.