This book explores the legal issues concerning groups of companies including regulation at national, international and global level. It offers a comparative discussion of the way in which issues common to the regulation of groups have been approached in the UK, in the European Union, in other member states of the union, in the US and, where helpful, in other countries including the emergent economies of eastern European states. The author highlights the often tragic consequences of globalisation by transnationals including polarisation of income and environmental damage.