Written By Mark Fleming – September 28, 2020

Affordability improved in July as two of the three key drivers of the Real House Price Index (RHPI), household income and mortgage rates, swung in favor of increased affordability, outpacing the rise in nominal house price appreciation. The average 30-year, fixed mortgage rate fell by 0.75 percentage points and household income increased 5.5 percent compared with July 2019. Declining mortgage rates and rising household income levels both increase consumer house-buying power. So, even though nominal house price appreciation jumped 8.2 percent annually in July, it was not enough to offset the affordability boost from declining rates and rising household income.


“Recent history has shown that in times of economic distress, lower mortgage rates have offset the affordability drag from faster house price appreciation and lower household income.”


While there remains debate regarding the actual end date of the 2020 recession, there is no argument that the economic pain inflicted by the coronavirus continues to linger. Yet, housing affordability nationally has improved, and the housing market remains resilient. But, how have nominal house prices and affordability fared in previous economic declines and what can that tell us about today’s housing market?

How Nominal House Prices Fare During Recessions
The chart below shows how nominal house prices and the RHPI reacted to the four most recent recessions, including the current pandemic-driven economic downturn. It is important to note that a declining RHPI trend line indicates improving affordability, and a rising RHPI trend line signals worsening affordability.

With the exception of the Great Recession in 2008-2009 and a modest decline in the 1990 recession, nominal house prices have remained flat or risen slowly, but have not declined. This demonstrates the “downside stickiness” of house prices during economic decline. In the pandemic-driven recession of 2020, we’ve seen house price appreciation grow faster than in any of the economic declines in our recent past.

This phenomenon of continued house price appreciation amid economic decline is unique to the housing market because sellers tend to withdraw supply to wait out the economic storm, rather than sell at lower prices. During the Great Recession, house prices declined because of a flood of foreclosures and distressed selling, which were a product of rapid house price appreciation not entirely supported by economic fundamentals. In today’s market, nominal house price appreciation has been driven by a historic shortage of supply relative to demand.

092820 RHPI chart

Real House Prices Then Versus Now
In three of the four economic downturns we examined, affordability as measured by the RHPI improved. Why? The RHPI adjusts nominal house prices for purchasing power by considering how income levels and interest rates influence the amount one can borrow. While nominal house prices may continue to rise during a recession and median household incomes tend to remain the same or fall, mortgage rates typically decline. The popular 30-year, fixed mortgage rate is loosely benchmarked to the 10-year Treasury bond and, in times of economic uncertainty, investors flee stocks and rush to bonds, pushing yields down, which brings mortgage rates down as well.

The only exception is the 2001 recession, when incomes fell and house price appreciation continued to rise, while mortgage rates also increased slightly at the beginning of the recession, causing a modest decline in affordability. The interplay between mortgage rates, income, and house price appreciation drive affordability trends. In the 2020 economic downturn, while house prices have continued to rise, rates have fallen to historic lows and income has grown modestly, resulting in an affordability boost.

Will the Trend Continue?
Nominal house price appreciation is showing no signs of slowing down, as supply and demand imbalances persist. While mortgage rates have, thus far, won the affordability tug-of-war nationally, some housing markets are beginning to feel the impact of pandemic-driven job losses on household income levels. In these markets, accelerating house price appreciation, in conjunction with flat or falling income levels, is dragging affordability down. The lesson? Affordability is resilient in the face of economic downturns, but just how resilient depends on the dynamics of mortgage rates, income, and house price appreciation.