What is quantitative easing and how does it work?

By Dan Mitchell
What is quantitative easing and how does it work?

Quantitative easing (QE) became a key tool for central banks after the global financial crisis. It’s used when traditional measures like cutting interest rates aren’t enough. By creating new money electronically and buying financial assets such as government bonds, QE lowers borrowing costs, adds liquidity to markets and helps guide inflation back towards target levels.

For CFD traders, knowing how QE affects asset prices and currencies can help for navigating volatility and spotting potential opportunities.

What is quantitative easing?

Quantitative easing (QE) is a monetary policy tool where central banks buy large amounts of financial assets, usually government bonds, to inject money into the economy and support growth.

In simple terms, QE means a central bank creates new money electronically and uses it to buy assets. The aim is to reduce borrowing costs and boost lending in the economy.

Trading financial instruments, including CFDs, involves significant risk of loss due to leverage.

How does quantitative easing work?

To understand QE, let’s break it into three main parts:

Effects of quantitative easing on markets and the economy

QE can stimulate markets and economies in the short term but may also create risks if used for too long.

1. Influencing long-term interest rates

By increasing demand for long-dated bonds, QE lowers long-term rates compared with short-term ones.

2. Potential impact on inflation

More money in the system can push prices up, though this effect isn’t always immediate or guaranteed.

3. Shifts in investor confidence

QE can influence asset prices and signals supportive policy, which can encourage more risk-taking.

  • Potential benefits: supports lending, raises asset prices, stimulates spending.
  • Potential risks: may fuel inflation or create asset bubbles

Why do central banks use quantitative easing?

Central banks use QE when cutting interest rates is no longer enough to support the economy.

Stimulating lending

QE aims to make borrowing cheaper and lending more attractive. By boosting banks’ reserves, central banks give them more capacity to lend – though banks will only do so if businesses and households want loans and regulatory rules are met.

How this works:

  • Banks hold more reserves
  • Lower interest rates encourage borrowing
  • Businesses and consumers can access more credit

Supporting inflation targets

Most central banks set an inflation target of around 2%. If inflation falls below this, QE can help push it higher.

How QE supports inflation:

  • A larger money supply can raise prices
  • Higher asset prices may create a “wealth effect” for some households
  • A weaker currency can lift import prices

Addressing economic crises

In deep recessions or emergencies, when interest rates are already close to zero, QE acts as a last-resort tool to keep credit flowing.

Quantitative easing vs quantitative tightening

QE and QT are opposites:

  • Quantitative easing (QE): central banks buy assets to add liquidity, lower yields and support growth when inflation is weak.
  • Quantitative tightening (QT): central banks sell assets or let them mature to reduce liquidity, usually when inflation is rising.

Below is a brief comparison table.

Aspect Quantitative easing (QE) Quantitative tightening (QT)
Mechanics Central bank buys assets, adding reserves Central bank sells assets or lets them mature, reducing reserves
Potential triggers Weak growth, low inflation Overheating economy, rising inflation
Market impact Lowers yields, boosts liquidity and asset prices Raises yields, cuts liquidity, may slow asset-price growth

Quantitative easing and forex markets

QE can have a direct impact on currency markets.

  • Follow announcements: central bank speeches and press conferences about QE often trigger sharp currency moves.
  • Manage volatility: use stop-loss orders and sensible position sizes to handle sudden FX swings. Trading CFDs involves significant risk of loss.*
  • Diversify: holding a mix of currency pairs and asset classes can help balance risk when QE shifts FX markets.
  • Currency effects: QE usually weakens a currency by increasing supply. This makes exports more competitive but raises import costs.
  • Winners and losers: exporters often benefit from a weaker currency, while importers face higher costs.

*Stop-loss orders are not guaranteed. Guaranteed stop-loss orders (GSLOs) incur a fee if activated. CFDs are traded on margin, and leverage amplifies both your losses and your gains.

Past performance is not a reliable indicator of future results.

FAQ

What’s the purpose of quantitative easing?

To lower borrowing costs, support asset prices and help central banks hit inflation targets when rate cuts alone aren’t enough.

Does QE always cause inflation?

No. It depends on factors such as the size of the output gap, how quickly money circulates, and whether governments use fiscal support.

How is QE different from printing money?

QE is about creating electronic reserves to buy financial assets. Printing money means physically producing notes and coins.

Can QE weaken a currency?

Yes – QE tends to put downward pressure on a currency. But exchange rates also reflect global conditions, interest-rate differences and investor sentiment.

How long does QE usually last?

It varies. QE programmes can run for years, until central banks believe growth and inflation are stable.