ROLE OF CENTRAL BANKS

1. A central bank exists because fiat money needs a trusted guardian = money has value by law and public acceptance → value can collapse if trust breaks → central bank protects confidence → price stability becomes its core job.

2. What is fiat money: money not legally convertible into gold or another commodity; it works because the state declares it legal tender and people accept it.

3. The central bank is the monopoly supplier of domestic currency = only it can issue base money → it controls the foundation of the monetary system → it becomes the natural conductor of monetary policy.

4. Monetary policy means central bank actions to influence money and credit = credit affects spending → spending affects output and inflation → central bank adjusts financial conditions instead of directly commanding households.

5. What is money and credit: money is the medium used for payment; credit is borrowing power created when banks lend to households and firms.

6. The central bank is banker to the government and banks = government and commercial banks need settlement accounts → central bank provides the final payment layer → financial plumbing stays centralized and trusted.

7. The central bank is lender of last resort = banks can face sudden liquidity panic → central bank can create money and lend → bank runs may stop before depositors destroy the system.

1. What is liquidity: the ability to get cash quickly without selling assets at desperate prices.

2. The central bank oversees the payments system = money must move safely between banks → rules and standards reduce settlement failure → commerce works because payments clear.

3. The central bank may supervise banks, but not always alone = bank supervision can sit with another authority → CFA trap: central banks normally lend last resort, but are not always the sole bank supervisor.

4. Most central banks manage foreign currency and gold reserves = reserves support confidence and intervention capacity → large central-bank gold sales can pressure gold prices → balance-sheet choices can move markets.

5. The main objective is usually price stability = stable money value protects contracts, wages, savings, and borrowing → inflation control becomes the practical expression of currency guardianship.

6. What is price stability: prices do not rise or fall so fast that households and firms lose confidence in money as a store of value.

MONETARY POLICY TOOLS

1. Open market operations change bank reserves directly = central bank buys or sells government bonds → commercial bank reserves change → lending capacity changes → broad money growth changes.

2. How open market purchase works: central bank buys bonds from banks → banks receive reserves → banks can lend more → money supply can expand if borrowers and banks cooperate.

3. How open market sale works: central bank sells bonds to banks → banks pay with reserves → lending capacity shrinks → money creation slows.

4. The policy rate is the central bank’s loudest signal = it sets the short-term cost of money → banks adjust lending rates → households and firms adjust borrowing and spending.

5. What is policy rate: the official interest rate the central bank uses to steer short-term money-market rates and broader financial conditions.

6. A repo rate is a secured short-term lending rate = central bank lends against bonds and later reverses the trade → banks get temporary liquidity → policy rate enters the banking system.

7. What is repurchase agreement: a bond sale with an agreement to buy it back later; economically it behaves like a secured loan.

8. Commercial banks raise base rates when policy rates rise = borrowing from the central bank becomes costlier → banks protect spreads → companies and households face higher loan rates.

9. Reserve requirements restrict money creation mechanically = banks must hold a minimum reserve against deposits → higher requirement lowers lending room → lower requirement raises lending room.

10. Reserve requirements are powerful but disruptive = sudden increases can force banks to stop lending → developed markets rarely use them actively → emerging markets still use them more often.

TRANSMISSION MECHANISM

1. Monetary transmission is the path from policy rate to inflation = central bank changes short rates → markets, banks, assets, exchange rates, and expectations move → demand and import prices shift → inflation changes.

2. What is transmission mechanism: the chain through which a central bank action reaches real spending, output, and inflation.

3. Rate channel works through borrowing cost = policy rate rises → mortgages, corporate loans, and interbank rates rise → borrowing falls → domestic demand weakens → inflation pressure eases.

4. Asset-price channel works through valuation = higher discount rates reduce bond and project values → household wealth and business investment fall → spending slows.

5. Exchange-rate channel works through foreign demand and import prices = higher domestic rates may attract capital → currency appreciates → exports become expensive and imports cheaper → inflation pressure falls.

6. Expectations channel works before actual cash flows change = if people expect more hikes → they borrow less and delay spending now → policy affects behavior through belief.

1. Central bank directly influences expectations, not final inflation = inflation is the end result → expectations are closer to the policy lever → CFA often tests this distinction.

2. Money neutrality matters only in the long-run story = money may not change real output permanently → but in the short run, central banks act as if money and credit affect real activity.

INFLATION TARGETING

1. Inflation targeting anchors behavior = central bank announces a target → households and firms set wages and prices around it → credibility can make the target partly self-fulfilling.

2. What is inflation targeting: a monetary policy framework where the central bank publicly targets a specific inflation rate or range.

3. New Zealand pioneered modern inflation targeting = inflation was pushed toward a formal range → central bank got operational independence → clear accountability and transparency became the model.

4. Independence protects monetary policy from election pressure = politicians may prefer low rates before elections → low rates can overheat demand → independent central banks resist that temptation.

5. Operational independence means tool freedom = government sets the target but central bank chooses the rate path → United Kingdom style examples fit here.

6. Target independence means goal freedom = central bank chooses the inflation definition, target level, and horizon → European Central Bank style examples fit here.

7. Credibility is the hidden engine of inflation targeting = if people believe the target → wage contracts and price setting follow it → policy needs fewer brutal rate moves.

8. Transparency builds credibility = central bank explains money, credit, markets, labor, prices, growth, and inflation forecasts → people understand the reaction function → expectations stabilize.

9. Why central banks target low inflation, not zero: zero target risks accidental deflation → deflation makes people delay spending → near-zero rates limit the central bank’s response.

EXCHANGE-RATE TARGETING

1. Exchange-rate targeting fixes currency value against another currency = central bank buys or sells domestic currency → exchange rate stays near target → domestic rates must adapt.

2. Why exchange-rate targeting is used: a less credible country can import the inflation discipline of a credible low-inflation country.

3. The cost is lost monetary freedom = if domestic inflation rises above the anchor country → currency weakens → central bank sells reserves and buys domestic currency → money supply falls and rates rise.

4. If domestic inflation falls below the anchor country = currency may strengthen too much → central bank sells domestic currency → money supply rises and rates fall.

5. Exchange-rate targeting requires credible reserves = if markets doubt defense capacity → speculators attack → peg can break violently.

1. Dollarization is stronger than a peg = country adopts the United States dollar as functional currency → national currency disappears in practice → monetary sovereignty is largely surrendered.

EXPANSIONARY AND CONTRACTIONARY POLICY

1. Expansionary monetary policy means easier liquidity = central bank cuts policy rate or buys assets → borrowing becomes cheaper → money and credit growth may rise → demand may recover.

2. Contractionary monetary policy means tighter liquidity = central bank raises policy rate or drains reserves → borrowing becomes costlier → demand cools → inflation pressure may fall.

3. Neutral rate is the benchmark for judging stance = policy rate above neutral is contractionary → policy rate below neutral is expansionary → policy rate equal to neutral is neither pushing nor braking.

4. What is neutral rate: the interest rate that neither stimulates nor slows the economy.

5. Neutral rate depends on trend growth and expected inflation = sustainable real growth sets the real component → long-run expected inflation sets the nominal layer → estimates differ across analysts.

[!question] Problem: Trend real gross domestic product growth is 3% and the central bank inflation target is 2%. Which policy rate is expansionary: 4%, 5%, or 6%?
Solution: Neutral rate = 3% + 2% = 5%. A policy rate below neutral stimulates the economy, so 4% is expansionary.
Explanation: Below neutral = easy money; above neutral = tight money.

1. Demand shock usually invites tightening = confidence lifts consumption and investment → inflation rises from excess demand → higher rates can cool the pressure.

2. Supply shock is trickier = oil price rise lifts inflation but hurts consumers already → higher rates can deepen weakness → central bank must identify the source before reacting.

QUANTITATIVE EASING AND LIMITATIONS

1. Quantitative easing is asset buying when rates are near zero = central bank creates money and buys securities → long yields may fall → cash balances rise → borrowing and spending may revive.

2. What is quantitative easing: large-scale central-bank purchase of government or private securities to loosen financial conditions when normal rate cuts are exhausted.

3. Quantitative easing can target reserves instead of policy rates = once rates hit zero → the central bank shifts from price of money to quantity of reserves → Japan used this after 2001.

4. Japan shows monetary policy has limits = rates fell from 8 percent in 1990 to zero by 2001 → quantitative easing followed → deflation still returned → cheap money cannot force borrowing.

1. The deepest limitation is behavioral = central bank can supply reserves → households may not deposit more → banks may not lend more → firms may not borrow → money supply control is imperfect.

2. Zero lower bound limits rate cuts = nominal rates cannot fall far below zero → deflation raises real debt burdens → conventional policy loses power.

3. Developing economies face extra monetary-policy constraints = weak bond markets, unstable money definitions, financial innovation, poor inflation history, and limited central-bank independence weaken transmission.

MONETARY AND FISCAL POLICY INTERACTION

1. Monetary and fiscal policy both affect aggregate demand but through different channels = monetary works through credit and rates → fiscal works through taxes and spending → composition of demand changes.

2. Easy fiscal and tight monetary policy expands public share = government spending rises or taxes fall → central bank tightens money → interest rates rise → private demand gets crowded out.

3. Tight fiscal and easy monetary policy expands private share = government restrains spending or raises taxes → central bank cuts rates → private borrowing and investment get more room.

4. Easy fiscal and easy monetary policy is strongly expansionary = public spending rises and rates stay low → public and private sectors can grow together → inflation risk rises.

5. Tight fiscal and tight monetary policy is strongly contractionary = taxes rise or spending falls and rates rise → public and private demand both weaken.

6. Fiscal policy is slower and politically sticky = projects need planning and approval → tax hikes and spending cuts are unpopular → monetary policy can move faster when the central bank is independent.

7. Ricardian equivalence weakens fiscal policy = people expect today’s tax cut to mean future tax hikes → they save instead of spending → policy makers may prefer monetary tools.

8. Quantitative easing can blur independence = central bank buys government securities heavily → it may appear to fund deficits → deficit monetization risk threatens credibility.

LOOK AT THESE BEFORE EXAM

1. Trend growth is 3 percent and inflation target is 2 percent; which policy rate is expansionary? Add them to get neutral rate of 5 percent; any policy rate below 5 percent is expansionary, so 4 percent fits.

2. Central bank buys government bonds repeatedly; what stance is this? It is expansionary because bank reserves rise, lending capacity can rise, and broad money growth can expand.

3. Central bank raises reserve requirement; what stance is this? It is contractionary because banks must hold more reserves and can lend less.

4. Domestic inflation rises above the anchor country under exchange-rate targeting; what happens? Central bank buys domestic currency using foreign reserves, domestic money supply falls, and short-term rates rise.

5. Policy rate rises; which direct variable is most likely affected first: inflation or inflation expectations? Inflation expectations, because final inflation changes only after the transmission mechanism works through demand and prices.

6. Interest rates are near zero and growth still does not recover; what does CFA want? Monetary policy effectiveness may be limited because rate cuts cannot force banks to lend or households and firms to borrow.

7. Easy fiscal policy and tight monetary policy; which sector grows as a share of output? Public sector, because government demand rises while higher rates suppress private demand.