American Union Bank, New York City. April 26, 1932.
A bank run
(also known as a run on the bank
) occurs when a large number of people withdraw their money from a bank
, because they believe the bank may cease to function in the near future. In other words, it is when, in a fractional-reserve banking
system (where banks normally only keep a small proportion of their assets as cash), a large number of customers withdraw cash from deposit accounts
with a financial institution at the same time because they believe that the financial institution is, or might become, insolvent
; they keep the cash or transfer it into other assets, such as government bonds, precious metals
. When they transfer funds to another institution, it may be characterized as a capital flight
. As a bank run progresses, it generates its own momentum: as more people withdraw cash, the likelihood of default increases, triggering further withdrawals. This can destabilize the bank to the point where it runs out of cash and thus faces sudden bankruptcy
. To combat a bank run, a bank may limit how much cash each customer may withdraw, suspend withdrawals altogether, or promptly acquire more cash from other banks or from the central bank, besides other measures.
A banking panic
or bank panic
is a financial crisis
that occurs when many banks suffer runs at the same time, as people suddenly try to convert their threatened deposits into cash or try to get out of their domestic banking system altogether. A systemic banking crisis
is one where all or almost all of the banking capital in a country is wiped out. The resulting chain of bankruptcies can cause a long economic recession
as domestic businesses and consumers are starved of capital as the domestic banking system shuts down. According to former U.S. Federal Reserve chairman Ben Bernanke
, the Great Depression
was caused by the Federal Reserve System
, and much of the economic damage was caused directly by bank runs. The cost of cleaning up a systemic banking crisis can be huge, with fiscal costs averaging 13% of GDP
and economic output losses averaging 20% of GDP for important crises from 1970 to 2007. Read more...