The Policy Research Initiative’s November 2005 interim report, The Emergence of Cross-Border Regions, explores the sub-national dimensions of North American economic integration.  The findings of the report are based on an extensive series of interviews with leaders in business, academia and government on both sides of the border in 2005. Changes in economic relations and in the ways both Canada and the United States interact with one another have been extensive, and largely positive, but another manifestation of this new relationship has been the growing extent of links of various kinds between the two countries, creating cross-border regional relationships.  ACOA provided funding for the project, and organized an Atlantic roundtable in March 2006, as part of a series of roundtables held across the country in 2005 and 2006.