Advancing the Regional Commons in the New East Asia highlights a number of interests which members of ASEAN and Plus Three countries collectively recognize. This set of common interests includes not only economic development but also social development. Written by nationals in their respective countries, the different chapters in this volume highlights the different foundations for such common interests and these reflect the different constructive ways in which ASEAN and Plus Three countries come to see a multi-strand cooperative partnership.The task of advancing the regional commons will involve efforts to recognise and nurture ASEAN’s and Plus Three’s common interests in terms of broad social development, managing regional security issues, the development of a regional infrastructure, and ensuring collective progress for all member countries. ASEAN becomes a community in 2015 and the idea of embracing, protecting, sustaining and advancing the regional commons become a vital process. Concurrently, APT has also realized that its contribution to the achieving goal of community and promoting regional commons is absolutely critical for both ASEAN and the Plus Three countries.Academics will find in this volume a clear analytical treatment of issues which regional groupings are currently facing and this can provide the basis for a comparative analysis. This volume will also be of interest to students and the general public looking for a systematic introduction to the successful implementation of cooperative ventures and also an assessment of the new collaborative energies which shape this dynamic region.