FRM Exam Part II · Monetary and Fiscal Policy: Safeguarding Stability and Trust

Inflation, Financial Stability and Policy Trade-offs

Updated 11 October 2026 · Fact-checked

Central banks raise rates to cut inflation, but higher rates lower the market value of fixed-rate assets, raise funding costs and can trigger deposit runs. Banks with large unhedged bond holdings and uninsured deposits, like SVB in 2023, are most exposed. You solve questions by tracing rate rise, asset losses, funding stress, then the policy tool used.

Understand Inflation, Financial Stability and Policy Trade-offs

Inflation control and financial stability can pull in opposite directions. To bring inflation down, a central bank raises its policy rate. Higher rates cool demand, but they also change the value of everything priced off interest rates.

Banks are exposed in two ways. On the asset side, a bond with a fixed coupon falls in price when yields rise. The longer the duration, the bigger the fall. On the liability side, deposits reprice upward as depositors seek higher returns, so net interest margin can shrink. If assets are held at amortised cost (held-to-maturity), the loss is hidden in the accounts but still real. It becomes real in the books if the bank must sell.

That is the 2023 story. Silicon Valley Bank held large amounts of long-dated securities funded by uninsured deposits from a concentrated, tech-sector base. Rates rose sharply in 2022-23. Unrealised losses grew, the bank sold securities and realised a loss, and depositors ran. Social media and digital banking made the run very fast. The lesson is that interest rate risk in the banking book (IRRBB), liquidity risk and concentration reinforce each other.

Policy has two jobs. Monetary policy targets price stability. Lender of last resort lending, deposit guarantees, and resolution tools target stability. A common view is that these are separate instruments, so a central bank can keep raising rates while providing liquidity to solvent but illiquid banks. The trade-off is moral hazard: support may encourage banks to take more risk. Another tension is that liquidity support can look like easing and weaken the inflation message.

Also know the wider channels. Rate hikes lower asset prices, tighten financial conditions, raise debt-service costs for borrowers, and can raise credit losses later. Non-bank financial institutions may face margin calls and redemptions. Supervisors respond with stress tests, liquidity rules (LCR, NSFR) and IRRBB standards.

Key formulas to remember

Approximate bond price change: ΔP ÷ P ≈ −D_mod × Δy + ½ × C × (Δy)²; D_mod is modified duration, C is convexity, Δy is the yield change in decimals. For small moves, use only the duration term.
Approximate dollar loss on a portfolio: Loss ≈ Market value × D_mod × Δy; Gives a quick estimate of unrealised loss from a parallel rate rise. Convexity makes the true loss slightly smaller.
Net interest margin: NIM = (Interest income − Interest expense) ÷ Average earning assets; Falls when deposit costs reprice faster than asset yields.
Loss relative to capital: Unrealised loss ÷ Equity capital; Shows whether fair-value losses would threaten solvency if the assets had to be sold.
Uninsured deposit share: Uninsured deposits ÷ Total deposits; Higher share means higher run risk. It is a funding stability indicator.

How to solve Inflation, Financial Stability and Policy Trade-offs questions

Use this chain for any question on inflation, rate hikes and bank stress.

1Identify the shock: size and speed of the policy rate or yield rise, and whether it is parallel.
2Find the bank's rate-sensitive assets and their duration, and note the accounting treatment (fair value or held-to-maturity).
3Estimate the asset loss with ΔP ≈ −D × Δy × market value, then compare it with capital.
4Check liabilities: uninsured deposit share, depositor concentration, deposit repricing speed and available liquidity.
5Link to the trigger: forced sales that realise losses, loss of confidence, or a run.
6Choose the policy response: lender of last resort liquidity for solvent banks, resolution for insolvent ones, and continued rate policy for inflation.
7Name the trade-off or risk: moral hazard, contagion, or mixed signals to markets.
8Check that your answer matches the exact wording: risk measure, regulatory concept, or policy tool.

Quickest way: Rate rise → asset loss → funding run → policy tool

When to use it: Use this when a multiple-choice question describes a bank or a policy decision and asks for the main cause, the risk, or the right response.

Compute loss = value × duration × yield change if numbers are given.
Compare the loss with equity. If it is large, solvency is at risk.
Look for uninsured or concentrated deposits. These signal run risk.
Liquidity problem for a solvent bank: lender of last resort. Insolvent bank: resolution.
Eliminate options that treat inflation and stability as always aligned or that say rate hikes only help banks.

Common mistakes in Inflation, Financial Stability and Policy Trade-offs

Saying SVB failed only because of credit losses.
Students link bank failure with bad loans from the 2008 crisis.
Fix: Remember that SVB's issue was interest rate risk on securities combined with liquidity and concentration risk, not mainly credit risk.
Ignoring the accounting treatment of securities.
Students assume unrealised losses do not matter.
Fix: Held-to-maturity losses are hidden in the accounts, but they reduce the bank's capacity to raise cash without realising losses. Compare them with capital.
Using the wrong sign or units in the duration formula.
Yield changes are given in basis points or percentages.
Fix: Convert to decimals first. A 200 bp rise is 0.02. A rise in yield gives a price fall.
Treating lender of last resort as a bailout of insolvent banks.
Both involve central bank support.
Fix: Classic lender of last resort lends against good collateral to solvent but illiquid banks, ideally at a penalty rate. Insolvent banks need resolution.
Claiming rate hikes always raise bank profits.
Banks earn more on floating loans when rates rise.
Fix: Net effect depends on repricing gaps, deposit betas, asset duration and hedging. Name the net effect, not just one side.
Assuming price stability and financial stability never conflict.
Textbooks often present them as complementary.
Fix: They usually align but can conflict in the short run, when tightening exposes fragility or when liquidity support muddies the policy message.

Worked examples

Example 1

A bank holds USD 20 billion of securities with modified duration 6 and equity capital of USD 2 billion. Yields rise by 150 basis points in parallel. Using the duration approximation, what is the unrealised loss, and what share of equity is it?

Show the solution

Convert the yield change: 150 bp = 0.015.
Loss ≈ 20 billion × 6 × 0.015.
6 × 0.015 = 0.09, so the price fall is about 9%.
Loss ≈ 20 × 0.09 = USD 1.8 billion.
Share of equity = 1.8 ÷ 2 = 0.90, or 90%.

Answer: The unrealised loss is about USD 1.8 billion, or 90% of equity. Selling the securities would almost wipe out capital, so the bank is highly vulnerable to a run.

Example 2

A mid-sized bank is solvent on a fair-value basis, but faces heavy deposit withdrawals after rate hikes. It holds good-quality collateral. The central bank is still fighting inflation. Which response best fits, and what is the main risk of it?

Show the solution

Check solvency: the bank is solvent, and the problem is liquidity.
Match the tool: lender of last resort lending against good collateral, ideally at a penalty rate.
Inflation policy can continue because liquidity lending targets the funding stress, not the policy rate.
Identify the main risk: moral hazard, since banks may expect support and take more interest rate and funding risk.

Answer: Provide emergency liquidity against good collateral as lender of last resort while keeping the tightening stance. The main risk is moral hazard.

Exam tips

Link every rate-shock question to both duration (assets) and funding stability (liabilities). Questions often reward the combination.
Convert basis points to decimals before using duration. Check the sign of the price change.
Know the SVB facts at a high level: long-dated securities, uninsured and concentrated deposits, rapid digital run. Do not add details you are unsure of.
Distinguish liquidity support (solvent bank) from resolution (insolvent bank) and name moral hazard as the trade-off.
Use the policy wording precisely: price stability is the monetary objective, financial stability is addressed with macroprudential and supervisory tools.

Practice questions from Monetary and Fiscal Policy: Safeguarding Stability and Trust

Inflation, Financial Stability and Policy Trade-offs: frequently asked questions

How do rate hikes cause bank failures?

Higher yields reduce the market value of fixed-rate assets, and deposit costs rise. If depositors lose confidence and withdraw, the bank may have to sell assets at a loss. That can turn a funding strain into insolvency.

What was the interest rate risk lesson from SVB in 2023?

SVB showed that interest rate risk in the banking book, liquidity risk and deposit concentration can combine. Unrealised losses on securities mattered because uninsured depositors could leave very quickly.

What is the lender of last resort role of central banks?

The central bank lends to solvent but illiquid banks, usually against good collateral, to stop runs spreading. The aim is to protect financial stability. The cost is possible moral hazard.

Is there a trade-off between inflation control and financial stability?

Often yes, in the short run. Tightening lowers inflation but can expose weak balance sheets. Policymakers use separate tools, such as liquidity facilities and supervision, to manage both goals.