 Shares have retreated in Europe and Asia after a broad washout across Wall Street yesterday dragged U.S. stocks lower. Benchmarks in Hong Kong and Taiwan dipped more than 2% as investors remain wary over China's plans for reviving its slowing economy. U.S. futures and oil prices declined. Yesterday, the S&P 500 fell 0.8%. The Dow Industrial Average sank 1.3% from its own record set the day before.