Innovation & Wealth › The information age › 2008 financial crisis and the Great Recession
US housing bubble and subprime mortgages
boom c. 2003–2006· Event· Companies & fortunes
Well documentedSolid records, texts or physical evidence.
In the mid-2000s US home prices soared on easy credit, fueled by risky 'subprime' loans to borrowers with weak credit or little proof of income.
See it on the Innovation & Wealth map →What happened
With the Fed's key rate at 1% in 2003–04 and investors hungry for yield, lenders such as Countrywide and New Century made adjustable loans with low teaser rates, thin paperwork and small down payments. Wall Street pooled them into mortgage bonds that rating agencies often stamped AAA. Subprime reached about a fifth of new mortgages by 2005–06. National home prices rose about 85% from 2000 to their 2006 peak, then fell about 27%. Brokers, bankers and early sellers profited; millions of borrowers lost homes.
Impact on society and the economy
It turned a housing slowdown into a global banking crisis, and its foreclosures stripped wealth from millions of families, especially Black and Latino homeowners.
Think of it like
Like underwriting a building on its hoped-for resale price instead of its rent roll: it works only while prices keep rising.
How we know
S&P Case-Shiller price indexes, federal mortgage data, lenders' records and the Financial Crisis Inquiry Commission's 2011 report document the boom, the loan terms and the defaults.
Still debated
How to divide blame among low Fed rates, Fannie Mae and Freddie Mac, private lenders, Wall Street and rating agencies; most studies find the Community Reinvestment Act played little role.
Connections (3)
▸Redlining and federal mortgage exclusion was echoed by 'reverse redlining' in US housing bubble and subprime mortgagesMostly agreed
The connection
Redlining had denied credit to Black neighborhoods. In the 2000s lenders flooded many of the same areas with costly subprime loans, called 'reverse redlining.' Black and Latino borrowers were far more likely to get high-cost loans, even with similar credit, so foreclosures concentrated there. Countrywide (2011) and Wells Fargo (2012) paid $335 million and $175 million to settle steering charges.
When and how
Cities such as Baltimore, Memphis, Cleveland and Detroit in the 2000s; Baltimore and Memphis sued Wells Fargo in 2008–09; the Justice Department settled in 2011–12.
How sure are we?
Federal mortgage data, settlement records and studies such as Bayer, Ferreira and Ross (2018) show higher-cost loans for minority borrowers with similar credit.
Debates
How much of the gap reflected discrimination versus differences in wealth, credit and broker access, and how much of the post-2008 drop in Black wealth it explains.
▸Levittown and the suburban boom symbolized the homeownership ideal behind US housing bubble and subprime mortgagesDebated
The connection
Levittown made owning a house, financed by a long, government-backed mortgage, the core of middle-class life. Decades later, policymakers kept pushing ownership: Clinton's 1995 National Homeownership Strategy and Bush's 'ownership society.' Loose lending standards and subprime loans in the 2000s pushed the US ownership rate to a record 69% in 2004, before the crash.
When and how
From Levittown, New York (1947) to the subprime boom of about 2003–2006, centered in fast-growing areas of California, Florida, Nevada and Arizona.
How sure are we?
This is a long-run, debated link: the homeownership ideal clearly runs from postwar policy to the 2000s, but the bubble's direct causes were later lending practices.
Debates
The 2011 Financial Crisis Inquiry Commission majority blamed private lenders and Wall Street; a dissent blamed federal housing goals. Low interest rates also mattered, by disputed amounts.
▸US housing bubble and subprime mortgages triggered 2008 financial crisis and the Great RecessionWell documented
The connection
When home prices stopped rising in 2006–07, subprime loans reset to higher payments, borrowers could not refinance, and defaults spread. Losses hit mortgage bonds held by banks worldwide, often bought with borrowed money. Because no one knew who held the bad loans, lending froze. Lehman Brothers, heavily invested in real estate, failed in September 2008.
When and how
US housing markets, especially California, Florida, Nevada and Arizona; lender New Century failed in April 2007, two Bear Stearns funds in June 2007, Lehman in September 2008.
How we know
Loan-level default data, bank write-downs and the Financial Crisis Inquiry Commission's 2011 report document the chain of events.
Debates
Why subprime losses of a few hundred billion dollars caused trillions in damage; economists point to leverage, runs on short-term funding and opaque securities.