If the trade-to-GDP ratio starts to fall, there will be "serious economic and strategic implications", says Senior Minister Lee Hsien Loong at the Singapore Maritime Week. SINGAPORE: Given heightened strategic tensions and policy uncertainty, it cannot be assumed that global trade will continue to keep up with the world's gross domestic product (GDP), said Senior Minister Lee Hsien Loong on Monday (Mar 24). If the trade-to-GDP ratio starts to fall, there will be "serious economic and strategic