One metric that nicely captures both the credit and mass psychology components of the current Canadian real estate craze is the total dollar amount of mortgage loan approvals as a percentage of GDP.
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The total amount of mortgage debt would be expected to rise, but in a healthy and sustainable real estate market, it would rise in tandem with GDP growth, meaning loan approvals as a percentage of GDP should stay range bound. That they haven’t is but one more indication that this is a market driven by unsustainable dynamics.
http://www.theeconomicanalyst.com/content/mortgage-crazy-look-loan-approvals-province