Canada's main stock index up moderately, loonie slips against U.S. dollar

TORONTO -- Major North American stock indices edged forward amid ongoing uncertainty in China-U.S. trade relations. The S&P/TSX composite index advanced 71.67 points to 16,877.42. In New York, the Dow Jones industrial average advanced 6.11 points to 27,680.91 The S&P 500 index was moved up 7.85 points to 3,093.03, while the Nasdaq composite rose 40.80 points to 8,475.31. The Canadian dollar exchange rate was not available at the time of publication. The December crude contract gained nin