NEW HAVEN – For the last two years, the conflict between the United States and China has dominated the economic and financial-market debate – with good reason. After threats and accusations that long predate US President Donald Trump’s election, rhetoric has given way to action. Over the past 17 months, the world’s two largest economies have become embroiled in the most serious tariff war since the early 1930s. And the weaponization of US trade policy to target perceived company-specific threats such as Huawei has broadened the front in this battl