Brussels, 01/07/2009 (Agence Europe) - In a speech on trade policy at the Annual Conference of the Association of British Bankers, Catherine Ashton stressed the need to concentrate in future, in post-Doha Round multilateral negotiations, on removing non-tariff barriers to trade. "Reducing tariffs is a mathematical exercise that involves the use of complex formulae. The future for multilateral trade is more relationship-centred. Future gains will come from identifying the non-tariff barriers...