By exploring different approaches to the study of labour law, this book re-evaluates how it is conceived, analysed, and criticized in current legislation and policy. In particular, it assesses whether so-called 'old ways' of thinking about the subject, such as the idea of the labour constitution, developed by Hugo Sinzheimer in the early years of the Weimar Republic, and the principle of collective laissez-faire, elaborated by Otto Kahn-Freund in...