Premarket: World shares mostly retreat on jitters over the outlook for tariffs

World markets retreated Friday after a lackluster session on Wall Street as investors remained uneasy over policies of U.S. President Donald Trump. The futures for the S&P 500 and the Dow Jones Industrial Average were 0.4% lower. In European trading, Germany's DAX slipped 0.7% to 22,848.55 ahead of a vote by Germany lawmakers on a budget that will boost defense and infrastructure spending. France's CAC 40 lost 0.6% to 8,046.61. Britain's FTSE 100 shed 0.4% to 8,663.60 after the Bank of England held its main interest rate steady a day earlier. The Federal Reserve, Bank of Japan and China's central…