Section 2 — How Money Works
8 key phrases
Session 5 Key Phrases: How banks create money
These are the phrases that let you explain one of the most misunderstood mechanisms in the economy — clearly, accurately, and with authority.
Banks don't just hold money — they create it.explanatory phrase
Use when: opening a conversation about credit creation or challenging the common misconception
Most people believe banks are warehouses for deposits. They are not. This phrase corrects the misunderstanding immediately and invites the real explanation.
"Most people think banks just hold your money safely. But banks don't just hold money — they create it, every time they issue a loan."
When a bank issues a loan, it creates a deposit.explanatory phrase
Use when: explaining the mechanics of fractional reserve banking and money creation
This is the core mechanism. The bank does not lend existing deposits — it creates new money in the form of a credit to the borrower's account.
"When a bank issues a loan for £200,000, it creates a deposit of £200,000. That money did not exist before the loan was signed."
The money supply expands when credit grows.analytical phrase
Use when: explaining the relationship between bank lending and the total amount of money in the economy
Credit growth = money supply growth. When banks lend more, more money exists. This is why credit booms often cause inflation.
"The money supply expands when credit grows — which is why cheap borrowing conditions in the 2010s contributed to rising asset prices."
This creates systemic risk.risk phrase
Use when: describing a situation where one failure could trigger a cascade across the whole system
Systemic risk is risk that cannot be contained — it spreads. Understanding when to use this phrase separates people who think in systems from those who don't.
"When institutions are deeply interconnected and all hold the same assets, a single large failure creates systemic risk for everyone."
The leverage ratio was unsustainable.diagnostic phrase
Use when: explaining why a bank, company, or individual was exposed to catastrophic risk before a crisis
Leverage = borrowed money relative to equity. A 30:1 leverage ratio means $1 of real capital supporting $30 of exposure. Any small loss wipes out the equity completely.
"In 2008, some investment banks had leverage ratios of 30 to 1 — the leverage was completely unsustainable, and a 3% fall wiped them out."
This is ultimately a confidence game.conceptual phrase
Use when: explaining that the banking system — like money itself — depends entirely on collective trust
Not a criticism — an observation. The system functions because everyone believes it functions. When belief collapses, so does the system.
"Banking is ultimately a confidence game — the moment depositors stop believing their money is safe, the bank run begins and the belief becomes self-fulfilllling."
The contagion spread faster than regulators could respond.crisis phrase
Use when: describing how a financial crisis cascades through interconnected institutions
Contagion = the spread of financial distress from one institution or market to others. Speed is the defining characteristic — regulation is always slower than panic.
"When Lehman Brothers failed, the contagion spread faster than regulators could respond — within days, global credit markets had frozen."
Profits were privatized; losses were socialized.critical phrase
Use when: critiquing the asymmetry of bank bailouts — banks kept profits in good times, taxpayers covered losses in bad times
One of the most powerful and precise critiques of the 2008 bailouts. Knowing this phrase signals sophisticated understanding of who the system is designed to protect.
"The 2008 bailouts illustrated a fundamental unfairness — profits were privatized for shareholders and bonuses, while losses were socialized across every taxpayer."