Monetary instruments and transmission limits
| English | 中文 | Pinyin |
|---|---|---|
| quantitative easing/ˈkwɒntɪteɪtɪv ˈiːzɪŋ/ | 量化宽松 | liàng huà kuān sōng |
| central-bank reserves | 央行准备金 | yāng háng zhǔn bèi jīn |
A decision you can investigate
- A lower loan rate can reduce financing costs, yet a firm may still refuse to invest if it expects no customers. Asset purchases can change financial conditions without guaranteeing new bank lending.
- Trace the instrument to decisions and demand, rather than promising a mechanical outcome.
Build the explanation
- Interest-rate changes can influence borrowing costs, saving returns, asset values, confidence and exchange rates. Lower rates may support consumption and investment; higher rates may restrain them, with effects varying by debt contracts and household positions. Quantitative easing 量化宽松 is central-bank asset buying financed by newly created central-bank money, often aimed at easing broader financial conditions. Purchases can affect asset prices/yields and portfolio choices; more reserves do not guarantee a corresponding increase in loans.
- Looser lending criteria can widen access to credit, while tighter criteria can restrain risky borrowing; creditworthiness, collateral and safeguards remain relevant. Lower binding reserve or liquidity requirements can ease a bank’s constraint, while higher requirements can restrict it or improve resilience. Actual frameworks differ: not every central bank uses the same rule, and reserves are not a pot of money directly handed to non-bank borrowers.
Work through the evidence
- A fictional fixed principal loan 1000 has annual simple interest 50 at 5%, versus 30 at 3%, saving 20 before fees or repayment changes. This does not establish a household spending increase 20: it may save the difference or repay debt.
- A simplified perpetual fixed-coupon bond pays 5 annually: price 100 implies current yield 5%; price 125 implies 4%. Asset buying can raise price and lower this yield, but a dated bond’s full yield also depends on redemption and timing.
- In a stylized QE purchase 100 from a non-bank investor through its bank, the investor exchanges the bond for deposit 100. The bank receives reserves 100 and owes an additional deposit 100; the central bank acquires the bond and issues reserves. This balance-sheet transaction is not itself a new customer loan. A separate bank with deposits 1000 and eligible liquid assets 100 meets a simple 10% rule; a 20% rule requires 200, a shortfall 100 before adjustment.
What is the simple annual interest saving?
50−30=20.
What is the illustrated current yield at price 125 and coupon 5?
5/125×100=4%; this is not a full dated-bond yield calculation.
A central-bank reserve increase guarantees an equal increase in new customer lending.
Credit decisions also depend on demand, risks, capital, funding and incentives.
Test the limits
- The bond and bank cases are teaching accounts, not a trading recommendation or a description of every jurisdiction’s operations. The simplified reserve requirement does not describe the current UK system; broader capital/liquidity rules, funding, profitability and credit demand matter. Rate changes can take time and may not pass through fully to fixed-rate borrowers.
- QE can face uncertain transmission, distribution effects through asset holdings and exit/balance-sheet risks. Tighter lending standards can reduce fragility but deny viable projects; looser ones can increase defaults. Exchange-rate movements depend on relative policies and expectations. Demand stimulus cannot by itself repair a missing skill or damaged supply capacity. Supplementary reference: Bank of England explanation of QE and market-operation objectives.
What is the liquid-asset shortfall under the separate 20% rule?
Required 200 less existing 100 equals 100.
Apply and explain your answer
- Why is the stylized QE purchase not proof that banks lend an additional 100 to households?
- The purchase creates reserves and a deposit while transferring an asset. A subsequent loan requires a separate credit decision and demand, funding and prudential conditions.
Match the terms to their meanings.
Use each term for its stated economic relationship.
Use the terms precisely
- quantitative easing: Central-bank asset purchases financed by creation of central-bank money, intended to ease monetary conditions.
- central-bank reserves 央行准备金: Balances eligible financial institutions hold at the central bank for settlement and related purposes.
A fictional fixed principal loan 1000 has annual simple interest 50 at 5%, versus 30 at 3%, saving 20 before fees or repayment changes. This does not establish a household spending increase 20: it may save the difference or repay debt. A simplified perpetual fixed-coupon bond pays 5 annually: price 100 implies current yield 5%; price 125 implies 4%. Asset buying can raise price and lower this yield, but a dated bond’s full yield also depends on redemption and timing. In a stylized QE purchase 100 from a non-bank investor through its bank, the investor exchanges the bond for deposit 100. The bank receives reserves 100 and owes an additional deposit 100; the central bank acquires the bond and issues reserves. This balance-sheet transaction is not itself a new customer loan. A separate bank with deposits 1000 and eligible liquid assets 100 meets a simple 10% rule; a 20% rule requires 200, a shortfall 100 before adjustment.
The bond and bank cases are teaching accounts, not a trading recommendation or a description of every jurisdiction’s operations. The simplified reserve requirement does not describe the current UK system; broader capital/liquidity rules, funding, profitability and credit demand matter. Rate changes can take time and may not pass through fully to fixed-rate borrowers. QE can face uncertain transmission, distribution effects through asset holdings and exit/balance-sheet risks. Tighter lending standards can reduce fragility but deny viable projects; looser ones can increase defaults. Exchange-rate movements depend on relative policies and expectations. Demand stimulus cannot by itself repair a missing skill or damaged supply capacity. Supplementary reference: Bank of England explanation of QE and market-operation objectives.
Interest-rate changes can influence borrowing costs, saving returns, asset values, confidence and exchange rates. Lower rates may support consumption and investment; higher rates may restrain them, with effects varying by debt contracts and household positions. Quantitative easing is central-bank asset buying financed by newly created central-bank money, often aimed at easing broader financial conditions. Purchases can affect asset prices/yields and portfolio choices; more reserves do not guarantee a corresponding increase in loans.