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Is Our Aging Population Driving Down Interest Rates?

July 29, 2020
5 mins
Modern seniors working at home

The older our population gets, the greater the chance that mortgage rates will stay low. That’s the message from a growing body of research.

Studies suggest that bond yields, which lead fixed mortgage rates, are on a downward trend in large part because of aging.

“An increase in the ratio of the middle-aged to the young population is associated with a reduction in bond yields…” notes one recent study on the topic. “An increase in the ratio of the middle-aged to the old population is associated with an increase in those bond yields.”

The report found this to be particularly true for Canada during the period from 1990 to 2015.

With the baby boom ending around 1964, the last 30 years have seen a steady aging of our population and a declining number of young people. While not purely causative, that’s coincided with 30+ years of falling bond yields.

Median Age in Canada

Median age in Canada.gif

Canada’s Age Distribution Over Time

Canada Age Distribution Over Time.gif

In the earlier stages of our working lives, people are typically borrowers. But as people age, they generally become savers. This results in:

(A) less consumption, leading to less pressure on inflation, a key interest rate driver,


(B) increased demand for bonds to finance retirements.

The latter weighs down bond yields as the percentage of seniors relative to the general population increases.

What does this mean for mortgage rates?

The report concludes that, based on Statistics Canada population projections, “we can expect that 10- and 20-year bond yields in Canada will be lower by roughly 40 basis points (relative to what they would have been under a stationary population structure.)”

Since fixed mortgage rates typically follow bond yields, the expectation of “lower for longer” yields implies mortgage rates should follow a roughly similar path and meander below historical averages.

“It's time to abandon the notion that world interest rates are going back up to historical levels,” writes Michael Walker, Chairman of the Fraser Institute Foundation & Founding Executive Director of the Fraser Institute, adding that the Bank of Canada appears to have done just that.

“And appropriately so, because the interest rates reflecting these inexorable demographic forces are something like the natural rate of interest … Even low rates of interest, which are maintained by central banks above those levels, will have a depressing effect on economies already slowing for other reasons.”


The RATESDOTCA editorial team are experienced writers focused on sharing stories and bringing you the latest news in insurance and personal finance. Our goal is to provide Canadians with the information and resources they need to make better insurance and financial decisions.

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