A credit crunch refers to a sharp reduction
in the availability of credit. It could
refer to a sharp increase in interest rates
but often it involves a significant shrinkage
in supplies of lendable funds. It
likely shuts out some subset of borrowers
from access to credit. The term came
into use in the 1960s when the home
mortgage industry began experiencing
periodic credit crunches. By 2000,
financial innovations and markets for
wider ranges of financial assets minimized
the possibility that one or two
economic sectors would bear the full
brunt of a credit crunch. Nevertheless,
the credit crunch of 2007–2008 began in
the home mortgage industry, and residential
construction was the hardest hit
economic sector
The home mortgage industry experienced
credit crunches in 1966 and again in
1969, 1973, and 1974. These episodes of
credit crunches occurred over a span
of years roughly coinciding with the
Vietnam War, a time when defense related
expenditures of the Cold War put the maximum
strain on the financial resources of
the United States. In addition to heavy
government borrowing, a piece of banking
law called “Regulation Q” banned payment
of interest on checking accounts and
limited the payment of interest rates on
savings accounts to the 5 percent range. At
the time of these first credit crunches, a
type of financial institutions called savings
and loans dominated the home mortgage
industry.
These institutions raised funds by
offering savings deposits to depositors,
and these funds were lent to home buyers
in the form of home mortgages. As inflation
and government borrowing exerted
upward pressure on interest rates, savers
began removing funds from savings and
loan deposits. Instead, they invested in 90-
day treasury bonds, which paid a substantially
higher interest rate. The flow of
funds out of savings and loan institutions
and into the bond market was called “disintermediation.”
An increase in short-term
interest rates prompted disintermediation,
forcing savings and loan institutions to
curtail lending, and residential home
builders to cut back on construction.
The development of secondary mortgage
markets eased the squeeze of these
early credit crunches. It severed the link
that forced mortgage lending and residential
construction to move in step with the
flow of deposits in and out of thrift type institutions. The secondary mortgage market
allowed the institutions that had expertise
in evaluating borrowers and establishing
customer relationships to continue to originate
mortgages. Instead of financing mortgages out
of savings deposits, thrifts sold mortgages
to third parties as an investment.
In 2007 and 2008, another type of
credit crunch, the subprime meltdown,
shut out borrowers from access to credit.
A wave of defaults on mortgages negotiated
with subprime borrowers shook the
secondary market for mortgages, forcing
originators of mortgages to greatly raise
the bar of creditworthiness. Subprime
borrowers are borrowers who paid higher
interest rates to compensate for weak
credit ratings.
A contraction in home
mortgages led to a contraction in the
housing industry, raising the specter of
recession. Lenders, stunned by high mortgage
defaults and expecting a recession,
began tightening credit standards for a
wide range of loans, including automobile
loans and other types of consumer credit.
As the Federal Reserve slashed interest
rates to ward off recession, lenders made it
harder for individuals to qualify for loans,
arousing fears that the anti-recession monetary
policy might not succeed.