By MarketsFarm WINNIPEG, May 1 (MarketsFarm) – The Canadian dollar dropped eight-tenths of a cent on Friday due to declines in the North American stock markets. The dollar finished the day at US$0.7109 or US$1=C$1.4066, compared to Thursday when it closed at US$0.7189 or US$1=C$1.3910. The threat by U.S. President Donald Trump to impose new