A paper by Dowell Myers and SungHo Ryu at the
University of Southern California looks at what could be the ultimate bursting
of the housing bubble in the Unted States. While everyone from
government to the nation's central bankers is quite pleased with themselves
when it comes to the resurgence of the housing market since the depths of the
Great Recession, this analysis suggests that the improvement may be temporary,
thanks in large part to the nation's demography.
Let's open with a look at
the composition of the population of the United States by age using a population pyramid:
Normally, the population
of both men and women decreases relatively smoothly as age increases. As
you can see on the pyramid above, population does not decrease with smoothly
with age, in fact, the number of people in each age bracket generally increases
or remains constant between the ages of zero and 60 and slowly declines thereafter. The shape of the U.S. population pyramid is largely due to the impact
of the baby boom.
Now, let's switch gears and look at both historical and projected population growth. Here is a bar graph
showing growth in the U.S. population age 25 and over for each decade from 1960
to 2030 showing the difference in the population growth rates for those aged 25
to 64 (in dark grey) and those aged 65 and older (in light grey) along with the age group that accounts for
the largest amount of growth over that decade:
This gives us a bit of a
sense about how the changes in the growth rate of older Americans could have an impact on many
social and economic issues, particularly the housing market.
Baby boomers were born
between 1946 and 1964 and have been a significant force in the United States
and world economies ever since. As the oldest of the baby boomers married
and had children in the early 1970s, they purchased increasing numbers of
homes, particularly in suburban neighbourhoods throughout America. This
had a market impact on the number of new homes built and sold as shown here (excluding the mid-1970s recession) when
compared to the purchase levels of the 1960s:
This rather sharp increase in the growth rate of the housing market appears to be part of a generational housing bubble, created
largely because of the rapid growth in the number of baby boomer housing
consumers.
Of course, this is going
to change with time. The first of the baby boomers reached age 65 in 2011
and the last will cross the 65 year threshold in 2029. As we can see on
the population pyramid, there are fewer younger people to follow, meaning that
the ratio of senior citizens to working-age, younger adults will rise. History shows that as people, including baby boomers, age and retire, they will change their housing consumption by:
1.) Moving to smaller
homes since there are no longer children resident in the family home.
2.) Relocating to regions
of the nation that they find more appealing.
3.) Withdrawing from the
housing market as they move into long-term care.
Here is a graph showing
the buy and sell rates for each age group showing the relationship between age
and house buying and selling behaviours:
Interestingly, in all but
three states, after the age of 70, most people are net sellers of homes.
Obviously, the exit of
baby boomers from home-ownership will have a significant impact on the housing
market since more homes will be for sale and there will be far smaller growth in the number of people between the ages of 25
and 64 who want to purchase a home. What this means is that there will
be far more house sellers than there are house buyers, a situation that will
likely lead to the bursting of the generational housing bubble.
The point where the number of buyers equals the number of sellers is
referred to as the cross-over point, a point in time which varies by state as
shown on this table:
The first of the states have likely already crossed the point where the number of buyers equals the number of sellers.
The biggest losers in
this scenario will be the baby boomers that are relying on the value of their
homes to fund their retirements, particularly the youngest among the baby
boomers who will be at the tail end of the bursting of the generational housing market bubble.
Since home equity makes up the largest portion of net wealth for most
households (i.e. other than the wealthiest households), the soon-to-be elderly
in many states will find themselves facing falling housing prices and declining
net worth.
From this analysis, we
can see that the housing boom of the mid-2000s was just part of a long-term
generational housing bubble, created largely by the boom in births following
the Second World War, an event that has happened only once in modern history. Once baby boomers begin to sell their homes en
masse, their actions could have a negative impact on America's housing market
for up to two decades, putting a final, painful end to the generational housing
bubble.