An important feature of the modern world which is widely recognised and commented upon by business people, journalists, politicians, diplomats, teachers and virtually anyone with the alertness to look about them, is its increasing inter-dependence and ‘internationalisation’. Your ability to read this message on the World Wide Web is itself a manifestation of the power of ideas to transcend national boundaries with great rapidity and at low cost. Technology has proved to be an agent which encourages co-operation across national boundaries. Technological developments in transport, telecommunications and computing have encouraged economic changes such as the decline in barriers to trade, the internationalisation of financial markets, the rise of global companies, and a massive increase in the volume of international trade in goods and services. These trends have been accompanied by political developments such as the rise of regional trading groupings of countries, international efforts to agree about common legal and technical rules to govern business dealings, arguments about ‘tax competition’ between countries, as well as increasing concern about the environmental consequences associated with world economic development. Enormous social tensions arise as these international forces come into conflict with long established ways of doing things in every country. Political and social systems are in a continuous process of adjustment to an increasingly open world.