An escalating global trade war has tanked markets and plunged corporate America into chaos. DealBook asked economists, investors and other experts to help make sense of what’s next. United States Politics and Government, International Trade and World Market, United States Economy, Customs (Tariff) An escalating global trade war has tanked markets and plunged corporate America into chaos. DealBook asked economists, investors and other experts to help make sense of what’s next. NYT > Business