Modest interest rates do not have to kill the economy. What we have now with essentially zero borrowing costs is the appearance of economic success, but with a foundation of sand, unable to weather a modest rate hike due to massive increases in soon to be serviceable household debt.And kill the rest of the economy? I'd prefer other tools. How about CMHC only cover entry level homes ie. less than 500 sq ft per person in a family. And they should stop their securitization of housing debt. Let the banks fully guaranteed their mortgage bonds. Watch what happens to housing, with just those two policy changes. Would do more than any interest rate change.
What I hate is how low interest rates punish folks like myself. Worked and fought hard to pay off the house, spend only what we can afford on what's necessary, never carry credit card debt, and save as much as possible. Instead the system is rewarding those who do the opposite; buy more house than they can afford, carry credit card debt, save little to nothing. I'm not suggesting a return to double digit rates of the 1980s nor calling for Depression-era policies intended to reduce spending, and I'm no economist, but a return to the rates of 2o11-2014 would be a good start in bringing some balance back between savers and spenders.