Banks: At the Heart of the Matter

Source details

Match up savers (depositors) and borrowers by taking in funds—called deposits—from those with money, pooling them, and lending them to those who need funds.
Act as intermediaries between depositors (who lend money to the bank) and borrowers (to whom the bank lends money).
Examples in the source text:
- "YOU’VE got $1,000 you don’t need for, say, a year and want to earn income from the money until then."
- "Or you want to buy a house and need to borrow $100,000 and pay it back over 30 years."
Process payments across a complex network of local, national, and international banks, central banks, and private clearing facilities.
Create money through lending after holding required reserves.

Banks convert short-term liabilities (deposits) to long-term assets (loans) through maturity transformation.
Income driver: banks pay depositors less than they receive from borrowers; that difference accounts for the bulk of banks’ income in most countries.
Alternative funding and liquidity operations:
- Direct borrowing in the money and capital markets.
- Issuing securities such as commercial paper or bonds.
- Repurchase agreements (repo).
- Packaging loans into securities (liquidity transformation and securitization) to obtain funds to relend.

Payments:
- Banks process payments from small checks to large-value electronic payments and include credit and debit cards in the payments system.
- A well-operating payments system is a prerequisite for an efficiently performing economy; breakdowns can significantly disrupt trade and economic growth.
Money creation:
- Banks hold reserves (cash or quickly convertible securities) based on assessment of depositors’ needs and regulatory requirements.
- Banks create money when they lend the portion of deposits not held as reserves.
- Relending can repeat in a "multiplier effect"; the size of the multiplier depends on the amount of money banks must keep on reserve.

Primary earnings source: spread between interest paid on deposits/borrowings and interest received from loans/securities.
Other earnings sources:
- Income from securities they trade.
- Fees for customer services such as checking accounts, financial and investment banking, loan servicing, and origination/distribution/sale of financial products (insurance, mutual funds).
Typical profitability metric:
- "Banks earn on average between 1 and 2 percent of their assets (loans and securities)." (return on assets)

Central banks control the national money supply; banks facilitate the flow of money in markets.
Central bank tools include changing reserve requirements and open-market operations (buying and selling securities with banks as key counterparties).
Banks can shrink the money supply by increasing reserves or holdings of liquid assets.
A sharp increase in bank reserves or liquid assets can lead to a "credit crunch" by reducing bank lending and raising borrowing costs, which can hurt economic growth.

Banks can fail; failures have broader ramifications (frozen deposits, broken loan relationships, disrupted lines of credit, contagion).
Primary sources of vulnerability:
- "a high proportion of short-term funding such as checking accounts and repos to total deposits."
- "a low ratio of cash to assets;"
- "a low ratio of capital (assets minus liabilities) to assets."
Dynamics of a run:
- Rapid withdrawals can exhaust a bank’s liquid assets, forcing sale of longer-term, less liquid assets—often at a loss.
- Losses that exceed capital can drive insolvency.
- Banking rests on confidence; a crack in confidence can trigger runs even on solvent institutions.
Market-driven runs:
- Greater use of market funding has increased vulnerability to runs driven by investor sentiment as opposed to solely depositor runs.

Banks typically require a charter and are eligible for government backstop facilities (emergency loans from the central bank, explicit deposit guarantees up to a certain amount).
Regulators supervise banks under home-country laws and may have intervention powers to minimize disruptions.
Regulatory aims:
- Limit exposures to credit, market, liquidity, and solvency risks.
- Require more and higher-quality equity (retained earnings and paid-in capital) to buffer losses than before the financial crisis.
- Impose higher capital requirements for large global banks to address systemic risk.
- Stipulate minimum levels of liquid assets and prescribe stable, longer-term funding sources.
Shadow banking:
- Regulators are reviewing institutions that provide bank-like functions but are not regulated the same way—"so-called shadow banks" (finance companies, investment banks, money market mutual funds)—given their systemic importance revealed by the recent financial crisis.

Content based on "Banks: At the Heart of the Matter" by Jeanne Gobat, F&D Magazine.