It's been called the most sweeping trade pact in a generation, and will affect 40 percent of the world economy. The Trans-Pacific Partnership was finally signed overnight in Atlanta. It will cut trade barriers and set common standards for 12 countries. But the devil remains in the detail ... and the written details have yet to be released. Crawford Falconer is a professorial chair in Global Value Chains and Trade at Lincoln University and a former trade negotiator with the Ministry of Foreign Affairs and Trade.