Quantitative easing mainly means that after the central bank implements a zero interest rate or near-zero interest rate policy, it increases the supply of base money and injects a large amount of liquidity into the market by purchasing medium- and long-term bonds such as treasury bonds to encourage spending and borrowing.

It can also be simply described as printing more money indirectly.

The national debt involved in the quantitative easing policy is not only huge in amount, but also has a long cycle.

Generally speaking, monetary authorities will resort to such extreme measures only when conventional tools such as interest rates are no longer effective.

The goal of quantitative regulation is to lock in long-term low interest rates. Central banks of various countries continue to inject liquidity into the banking system and release large amounts of money into the market.

In other words, under quantitative easing, the monetary policy implemented by the central bank on the economy is not fine-tuning, but strong medicine.