Central-bank roles and policy choice
| English | Français |
|---|---|
| lender of last resort/ˈlendə ɒv læst rɪˈzɔːt/ | lender of last resort |
| liquidity shortfall | liquidity shortfall |
A decision you can investigate
- A solvent bank may lack cash to meet payments today. A bank whose assets are worth less than its obligations has a different problem.
- Stabilizing payment liquidity is not the same as guaranteeing every bank owner’s losses.
Build the explanation
- Central banks implement monetary policy through their instruments and operating arrangements. An inflation target supplies a stated objective and accountability benchmark, but shocks, forecasts and policy lags make precise control impossible; a target is not proof of achieved inflation. As banker to government, a central bank can hold accounts and provide payment/banking services; this role differs from deciding government taxes and spending.
- As banker to banks and lender of last resort 最后贷款人, it can provide emergency liquidity under defined conditions when normal funding is disrupted, supporting settlement and financial stability. Lending conditions and collateral help limit risk and moral hazard. Liquidity support and solvency repair differ. Compare monetary and fiscal responses for speed, precision, distribution, uncertainty, public finance, credit conditions and the shock being addressed; demand management is not a substitute for every supply-side remedy.
Work through the evidence
- A fictional bank has assets valued 100 and liabilities 90, equity 10. It owes immediate payments 20 but has cash 5, a liquidity shortfall 流动性缺口 15; borrowing against suitable assets could bridge timing without proving new net wealth. If assets instead fall to 80 with liabilities 90, equity becomes −10: the problem includes insolvency, not just payment timing.
- A fictional inflation target 2% and observed inflation 4% give a deviation of 2 percentage points, not a price-level gap of 2%. If inflation reflects weak supply and cost shocks while output falls, aggressive demand restraint can reduce inflation pressure but deepen unemployment. In a demand slump with spare capacity, stimulus can support output; fiscal targeting may reach constrained households, while monetary changes affect borrowers, savers and financial conditions more broadly.
What is the original immediate liquidity shortfall?
Payments 20 less cash 5 gives 15.
Test the limits
- Targets, independence and emergency powers vary between countries; the fictional 2% example does not claim a universal numerical mandate. A central bank normally acts within a legal framework and cannot promise to eliminate all shocks. Emergency liquidity can create moral hazard if institutions expect unconditional rescue; collateral, terms, supervision and resolution arrangements matter.
- Monetary tools can be adjusted quickly but transmission has lags and may weaken when confidence or credit demand is low. Fiscal measures can target public projects or groups yet face authorization, delivery delays and debt constraints. Policy coordination can reduce offsets, but the appropriate mix depends on capacity and the shock. Evaluate results against the six objectives and affected groups, not just an AD arrow. The official Bank of England market-operation guide is a named institutional illustration, not a universal operating rule.
What is equity after assets fall to 80?
Assets 80 less liabilities 90 gives −10.
Lender-of-last-resort lending automatically repairs any bank’s insolvency.
Liquidity assistance does not itself replace asset losses or restore negative equity.
Apply and explain your answer
- Why does the bank with assets 80 and liabilities 90 need a different diagnosis from the original cash shortfall?
- Its net asset value is negative, suggesting insolvency as well as any liquidity shortage. A temporary loan does not restore the lost asset value by itself.
What is the target deviation at inflation 4% against a 2% target?
4−2=2 percentage points; context determines the response.
Use the terms precisely
- lender of last resort: A central-bank role providing emergency liquidity under defined conditions when ordinary funding is unavailable.
- liquidity shortfall: Insufficient readily available payment resources when obligations fall due, distinct from net asset value.
Match the terms to their meanings.
Use each term for its stated economic relationship.
A fictional bank has assets valued 100 and liabilities 90, equity 10. It owes immediate payments 20 but has cash 5, a liquidity shortfall 15; borrowing against suitable assets could bridge timing without proving new net wealth. If assets instead fall to 80 with liabilities 90, equity becomes −10: the problem includes insolvency, not just payment timing. A fictional inflation target 2% and observed inflation 4% give a deviation of 2 percentage points, not a price-level gap of 2%. If inflation reflects weak supply and cost shocks while output falls, aggressive demand restraint can reduce inflation pressure but deepen unemployment. In a demand slump with spare capacity, stimulus can support output; fiscal targeting may reach constrained households, while monetary changes affect borrowers, savers and financial conditions more broadly.
Targets, independence and emergency powers vary between countries; the fictional 2% example does not claim a universal numerical mandate. A central bank normally acts within a legal framework and cannot promise to eliminate all shocks. Emergency liquidity can create moral hazard if institutions expect unconditional rescue; collateral, terms, supervision and resolution arrangements matter. Monetary tools can be adjusted quickly but transmission has lags and may weaken when confidence or credit demand is low. Fiscal measures can target public projects or groups yet face authorization, delivery delays and debt constraints. Policy coordination can reduce offsets, but the appropriate mix depends on capacity and the shock. Evaluate results against the six objectives and affected groups, not just an AD arrow. The official Bank of England market-operation guide is a named institutional illustration, not a universal operating rule.
Central banks implement monetary policy through their instruments and operating arrangements. An inflation target supplies a stated objective and accountability benchmark, but shocks, forecasts and policy lags make precise control impossible; a target is not proof of achieved inflation. As banker to government, a central bank can hold accounts and provide payment/banking services; this role differs from deciding government taxes and spending.