This volume contains a selection of papers that were presented at the CRESSE Conferences held in Chania, Crete, from July 6th to 8th, 2012, and in Corfu from July 5th to 7th, 2013. The chapters address current policy issues in competition and regulation. The book contains contributions at the frontier of competition economics and regulation and provides perspectives on recent research findings in the field. Written by experts in their respective fields, the book brings together current thinking on market forces at play in imperfectly competitive industries, how firms use anti-competitive practices to their advantage and how competition policy and regulation can address market failures. It provides an in-depth analysis of various ongoing debates and offers fresh insights in terms of conceptual understanding, empirical findings and policy implications. The book contributes to our understanding of imperfectly competitive markets, anti-competitive practices and competition policy and regulation.