Trade war could derail global economic recovery, warns OECD

Thinktank upgrades its growth forecast but says tit-for-tat tariffs would make international trade vulnerableThe west’s leading economic thinktank has warned Donald Trump that a trade war prompted by US protectionism threatens to derail a recovery in global growth, which has reached its highest level in seven years.In its latest interim forecasts, the Paris-based Organisation for Economic Co-operation and Development said it expected the world economy to expand by 3.9% in both 2018 and 201