Long-term rate hikes effects will be ‘more powerful’ than people think: PolozOTTAWA — The full effects of interest rate hikes have yet to be felt — and will be "even more powerful" than many anticipate, said former Bank of Canada governor Stephen Poloz Thursday in a speech about ways Canada can chart a path toward economic growth during uncertain times. Statistics Canada's most recent annual inflation rate sat at 6.9 per cent in October. Economists estimate interest rate hikes take one to two years to take full effect in the economy. That lag makes it difficult to judge whether rate hikes are too much or too little, the former governor said. Poloz said trying to slow inflation with interest rate hikes is like trying to stop a car with bad brakes.