NEW DELHI : A new trade agreement between the United States and Vietnam is raising concerns and offering key lessons for India, especially for Indian exporters who see Vietnam as both a competitor and a partner in regional value chains, according to a report by the Global Trade Research Initiative (GTRI).The report highlighted that despite a historic trade agreement signed in 2000 that allowed Vietnamese goods to enter the US at concessional tariffs of 2 to 10 per cent, the new deal imposes a flat 20 per cent . . .