TSX has biggest jump in more than 2 years

photoTORONTO (Reuters) – Toronto’s main stock index jumped more than 4 percent on Wednesday in its biggest single-day gain in more than two years, pushed up by an agreement by global central banks to tackle the euro-zone debt crisis and by a move by China to ease credit. The move by the TSX index mirrored hefty gains on other global markets as central banks from the world’s leading economies, including the Bank of Canada, the U.S. Federal Reserve and the European Central Bank, agreed to lower the cost of dollar swap lines by 50 basis points, as well other measures. …