Canadian policymakers abandoned an 18-month streak of rate-hike talk in a policy shift, saying the economy is facing slower-than-expected growth and risks of persistently weak inflationary pressure. The Bank of Canada left its key refinancing rate at 1%, citing the economy is facing global and domestic impediments to growth, including uncertainty in the United States. Since September 2010 the nation's central bank refrained from any additional stimulus, relying on previous adjustments.