Demand deposits are usually considered part of the narrowly defined
money supply, as they can be used, via
checks and drafts, as a means of payment for goods and services and to settle debts. The money supply of a country is usually defined to consist of currency plus demand deposits. In most countries, demand deposits account for a majority of the money supply. The majority of demand deposits arise from bank lending.
Fractional-reserve banking Demand deposits are fundamental to the
fractional-reserve banking system. Banks only back a fraction of demand deposits with reserves. Textbooks had explained
money creation using
money multiplier and
reserve requirements concepts.
Michael Kumhof and
Richard Werner have shown banks create money out of thin air.
Economic crises Great Depression During the
Great Depression, widespread
bank runs led to massive withdrawals of demand deposits. Conversion of demand deposits to currency caused: • Severe contraction in the money supply (M1 fell by 27%) • Bank failures due to insufficient reserves • Deflationary pressure on the economy The experience of bank panics led to the creation of the
Federal Deposit Insurance Corporation in 1933, insuring limited deposit amounts and restoring public confidence in banks.
2008 financial crisis However, during the
2008 financial crisis, demand deposits in the U.S. increased dramatically, from around $310 billion in August 2008 to a peak of around $460 billion in December 2008. This increase reflected: •
Flight to quality: Investors moved funds from risky investments to insured bank deposits •
Liquidity hoarding: Businesses and individuals increased cash holdings due to economic uncertainty •
Credit market disruption: Reduced availability of alternative short-term investments
Modern banking stability Contemporary demand deposit systems use multiple stabilizing mechanisms: •
Deposit insurance: FDIC insurance (currently $250,000 per account) prevents most bank runs •
Federal Reserve support: Lender of last resort function provides emergency liquidity •
Capital requirements: Banks must maintain minimum capital ratios to absorb losses •
Stress testing: Regular evaluation of banks' ability to withstand economic shocks
International variations European Union European demand deposits operate under the
Single Euro Payments Area (SEPA) framework, allowing transfers across member countries. The
European Central Bank supervises major banks and sets monetary policy affecting demand deposit rates.
United Kingdom UK demand deposits, called current accounts, typically offer more services than US checking accounts, including: • Automatic bill payment services (direct debits) • Overdraft facilities • Mobile banking platforms
Developing economies Many developing countries have lower demand deposit ratios due to: • Higher cash usage in daily transactions • Limited banking infrastructure • Lower levels of financial inclusion • Greater reliance on informal financial systems == Monetary reform and policy implications ==