economic rebound is on the horizon, but say the short-term looks difficult and spending won’t truly pick up until the back half of 2021 or even 2022.The chief executives of the country’s most prominent banks think Canada is benefiting from generous government relief packages that reduced delinquencies and insolvencies and the arrival of several promising COVID-19 vaccines.However, they say the coming weeks don’t look pretty because growing numbers of Canadians are continuing to contract the virus.“In the short-term things are going to be not as good as one might have hoped, but overall I think we are in a probably slow way of getting more positive as the year goes by,” TD chief executive Bharat Masrani said Monday.