This collection examines new developments in economic and security co-operation in the Asia-Pacific in relation to two recent shock events that have significantly impacted upon the region, these being the 1997/98 East Asian financial crisis and the September 11 attacks on the United States. These are examined through three prime dimensions of analysis, namely: the tension between the post-shock forces of imperative co-operation and the counter-forces of Asia-Pacific complex diversity; the growing conflation between economic and security issues - or the economics-security nexus - in Asia-Pacific international relations; the relationship between the Asia-Pacifics new economic and security bilateralism and regional-level forms of co-operation, integration and governance.