TORONTO — The review of North America’s free trade agreement will play a large part in determining the trajectory of the Canadian economy, as one strategist says he is optimistic that certain concessions could help achieve a positive outcome. Ashish Dewan, a senior investment strategist at Vanguard, said the Canadian economy is still significantly reliant on US trade despite attempts to diversify its trading partners. He said Canada currently has a “trade advantage,” due to a lower effective tariff rate compared with other nations, sitting around six per cent compared with about 16 to 19 per cent faced by other nations. “What’s really having a negative impact on the Canadian economy are those Section 232 sectoral tariffs,” Dewan said. Tariffs covered by Section 232 of the U.S. Trade Expansion Act of 1962 cover a wide range of products like steel, aluminum and lumber and are generally not exempt under the Canada-U.S.-Mexico Agreement, better known as CUSMA.