Regionalism and World Order assesses the origins, significance and likely evolution of the trend towards regionalism within the world order. It analyses how states have been responding to the end of US hegemony and assesses the extent to which new regional blocs are emerging and their nature. These questions are analysed through detailed case studies of the three most advanced regions of the world economy - the Americas, the European Union, and East Asia - firstly from the standpoint of the 'core' state or states, and secondly from that of the 'peripheral' states.