When it comes to interest rates, attention this week will likely be on what the Bank of Canada says, not on what it does. The bank is all but certain to keep its short-term policy interest rate at 0.25 per cent. But some believe the bank may give some clue that could tip markets about its intention. Economist Sheryl King says the time may have arrived for Carney to put some flexibility back into his policy options. However, even a hint of a raise in interest rates could send the Canadian dollar shooting higher, something the bank wishes to avoid.