This story was originally published on CFO Dive. To receive daily news and insights, subscribe to our free daily CFO Dive newsletter. Dive Brief: The highest tariffs since the 1930s pose a heavy drag on the economy and will slow gross domestic product growth to 1.6% this year, the Conference Board said Thursday, noting that its Leading Economic Index fell more in August than any month since April. Import taxes undermined economic growth beginning in the first half of this year and will persist as an im ...