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

Unconventional Monetary Policy: QE and Forward Guidance

Updated 11 October 2026 · Fact-checked

Unconventional monetary policy is what a central bank uses when its policy rate is at or near its lower bound. QE buys assets to lower long-term yields. QT lets the balance sheet shrink. Negative rates charge banks for reserves. Forward guidance shapes rate expectations. Solve questions by tracing the channel, then the risk.

Understand Unconventional Monetary Policy: QE and Forward Guidance

A central bank normally steers the economy by moving a short-term policy rate. When that rate is at or near its effective lower bound and more stimulus is needed, it turns to other tools. These are called unconventional monetary policy.

Quantitative easing (QE) means the central bank creates reserves and uses them to buy assets, usually government bonds and sometimes mortgage-backed securities or corporate bonds. Buying lowers long-term yields in three ways. It removes duration from private hands, which cuts the term premium. It pushes investors into other assets (the portfolio rebalancing channel), which lifts prices and compresses credit spreads. It also signals that policy will stay easy (the signalling channel). Banks end up holding more reserves, so the central bank balance sheet and excess reserves grow.

Quantitative tightening (QT) is the reverse. The central bank stops reinvesting maturing bonds, or in some cases sells them, so the balance sheet shrinks and reserves fall. Pressure on term premia and yields is upward, and market liquidity can thin. Risks include volatile funding markets as reserves become less abundant, and weaker demand for government debt just when supply is large. The size and speed of the effect are uncertain, so treat claims of a fixed yield impact with caution.

Negative interest rate policy (NIRP) sets the policy rate or the deposit facility rate below zero, so banks pay to hold reserves. The aim is to push banks to lend and to weaken the currency. The risks are squeezed bank net interest margins, because banks often hesitate to pass negative rates on to retail depositors. There is also a risk of cash hoarding, and of more risk-taking by investors seeking yield. Effects are strongest near a bank's funding limit, often called the reversal rate idea.

Forward guidance is communication about the likely future path of policy rates. It can be calendar-based (a date), state-contingent (tied to inflation or unemployment thresholds) or qualitative. It works by lowering expected future short rates and by reducing rate volatility. Its risk is credibility. If the bank changes course, markets may feel misled, and a sudden shift can cause sharp repricing, as seen in taper-type episodes. Across all these tools, exam questions ask you to link the tool to a transmission channel, a market effect and a risk.

Key formulas to remember

Long yield decomposition
Long-term yield ≈ average expected future short rates + term premium
QE mainly lowers the term premium. Forward guidance mainly lowers expected short rates.
Bond price change from yield move
ΔP ≈ −D × Δy × P (D is modified duration)
Use it to size mark-to-market effects of QE or QT on bond holders. Convexity matters for large moves.
Central bank balance sheet under QE
Assets (bonds) ↑ and Liabilities (bank reserves) ↑ by the same amount
QT reverses this. Reserves fall as bonds mature without reinvestment.
Cash-flow effect of negative rate on reserves
Annual cost = reserves × |rate|
For example, ₹ or USD reserves of 100 million at −0.50% cost 0.5 million a year.

How to solve Unconventional Monetary Policy: QE and Forward Guidance questions

Use the same five-part chain on any question about QE, QT, negative rates or forward guidance.

  1. 1Identify the tool: QE, QT, negative rate or forward guidance. Check the direction (easing or tightening).
  2. 2Name the transmission channel: term premium, portfolio rebalancing, signalling, expectations or bank lending.
  3. 3State the market effect: yields, credit spreads, asset prices, currency, volatility and liquidity.
  4. 4State the balance sheet effect, if any: central bank assets and reserves up or down.
  5. 5Identify the main risk: bank margins, search for yield, market liquidity, exit or credibility problems, or fiscal dependence.
  6. 6Check the wording for the one answer that fits all conditions, such as 'least likely' or 'most direct'.
  7. 7If a number is given, apply duration or the simple rate formula and check the sign.

Quickest way: Tool, channel, risk in 20 seconds

When to use it: Use for conceptual multiple-choice items where options mix up the tools.

  1. QE or QT: think term premium and reserves. QE lowers yields and raises reserves. QT does the opposite.
  2. Forward guidance: think expected path of short rates and credibility.
  3. Negative rates: think bank margins and the cost of reserves.
  4. Cross out any option that reverses a direction or confuses a tool with a channel.
  5. If two options remain, pick the one that names a risk, not just an effect.

Common mistakes in Unconventional Monetary Policy: QE and Forward Guidance

  • Saying QE is the same as printing cash for the government.

    Media shorthand blurs the idea.

    Fix: QE is the purchase of assets in exchange for newly created bank reserves. It is a balance sheet operation, not a direct transfer.

  • Treating QT as simply the opposite with an exactly equal effect.

    Symmetry feels natural.

    Fix: QT effects are uncertain and depend on market liquidity and reserve scarcity. Do not state fixed yield impacts.

  • Assuming negative rates always boost bank profits through more lending.

    Focus on the intended aim, not the margin squeeze.

    Fix: Banks often cannot pass negative rates to depositors, so net interest margins can fall. State this as a main risk.

  • Mixing up forward guidance with an actual rate change.

    Both move expectations.

    Fix: Forward guidance is communication about the future path. It changes no rate today but moves longer yields.

  • Getting the sign wrong on bond prices when yields fall.

    Rushing past the inverse relation.

    Fix: Lower yields mean higher bond prices. QE raises prices of the purchased assets.

Worked examples

Example 1

A bond portfolio worth USD 200 million has a modified duration of 6. A QE announcement is followed by a 25 basis point fall in yields across the curve. Estimate the change in portfolio value and explain the main channel.

Show the solution
  1. Yield change Δy = −0.25% = −0.0025.
  2. ΔP ≈ −D × Δy × P = −6 × (−0.0025) × 200 million.
  3. 6 × 0.0025 = 0.015, and 0.015 × 200 million = 3 million.
  4. The sign is positive because yields fell.
  5. The main channel is a lower term premium from central bank purchases, plus portfolio rebalancing.

Answer: Value rises by about USD 3 million (to about USD 203 million), driven mainly by a lower term premium.

Example 2

A central bank sets its deposit rate at −0.40%. A bank holds EUR 500 million in excess reserves. It cannot pass the cost to depositors. What is the annual cost, and what is the main risk to the bank?

Show the solution
  1. Annual cost = reserves × |rate| = 500 million × 0.0040.
  2. 500 million × 0.004 = 2 million.
  3. Because the bank cannot charge depositors, this cost reduces its net interest income.
  4. Its funding cost stays near zero while asset yields are also pushed down, so margins are squeezed.

Answer: The annual cost is EUR 2 million. The main risk is a squeeze on net interest margin and profitability.

Exam tips

  • Always link the tool to a channel, then to a risk. Options that skip the risk are often wrong.
  • Watch direction words such as 'reduces' and 'raises' for QE versus QT.
  • Remember that forward guidance works through expectations and credibility, not balance sheet size.
  • For numerical items, use duration with the correct sign and convert basis points to decimals.

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

Unconventional Monetary Policy: QE and Forward Guidance in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Unconventional Monetary Policy: QE and Forward Guidance: frequently asked questions

What is the difference between QE and QT?

QE is central bank asset buying that creates reserves and lowers long-term yields. QT is the reverse: the balance sheet shrinks as bonds mature or are sold, reserves fall and upward pressure on yields follows. QT effects are less certain.

How does quantitative tightening affect bond markets?

It removes a large buyer, so more duration must be held by private investors. That tends to lift term premia and yields and can thin market liquidity. The size of the effect depends on how fast QT runs and on market conditions.

What is forward guidance in simple terms?

It is a central bank telling markets how it expects policy rates to move. Clear guidance lowers uncertainty and shifts expected future short rates. If the bank departs from it, credibility can suffer.

What are the risks of negative interest rates?

The main risks are squeezed bank margins, search for yield and excess risk-taking, and possible cash hoarding. Banks may also hesitate to lend if profitability falls. Effects depend on how far rates go below zero.