Quantitative Easing: How Central Banks Stimulate the Economy
By Imperialpedia Staff
Quantitative easing (QE) is a monetary policy tool in which a central bank purchases large quantities of government bonds or other securities, injecting liquidity into the financial system and putting downward pressure on long-term interest rates.
When Central Banks Turn to QE
QE is typically used when a central bank's standard interest-rate tool has limited room left to work — for example, when short-term rates are already near zero — but the economy still needs additional monetary stimulus. By buying large volumes of longer-term bonds, a central bank can push down longer-term borrowing costs even when it can't cut short-term rates any further.
How It's Meant to Work
By buying bonds, a central bank increases their price and lowers their yield, and adds newly created reserves to the banking system. The intended effect is cheaper borrowing across the economy — for mortgages, corporate debt, and other loans — encouraging spending and investment during a period of economic weakness.
IMPORTANT
The reverse process, in which a central bank reduces its bond holdings or lets them mature without reinvesting, is often called quantitative tightening, and tends to push in the opposite direction on interest rates and liquidity.
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