"In the wake of the global financial crisis, retail clients have filed numerous claims against banks and investment firms for breaches of conduct of business rules in the distribution of financial instruments. Significantly, MiFID II raises key issues onthe interplay between conduct of business rules and national private law. Building on the case law of national courts, decisions of alternative dispute resolution mechanisms in Italy, Spain, France and the UK, and the most recent literature, this monograph shows how the new MiFID II conduct of business rules can influence the interpretation of national private law, giving rise to hybrid private law duties and remedies. More specifically, the book illustrates the different forms and implications of this emerging, hybrid form of private law and argues that it will effectively supplement the actions of EU and national supervisory authorities aimed at ensuring the deterrent effect of conduct of business rules; furthermore, it will strengthen the protection of unsophisticated retail clients and investors' confidence in financial markets. The book brings an essential contribution to academic research and will also be of interest to policy-makers and legal practitioners working on financial litigation"--