Question 1

What is quantitative easing?

Accepted Answer

QE is what the Fed does when the overnight rate is already at zero and it still wants to push more money into the system. The Fed creates new bank reserves out of nothing and uses them to buy Treasuries and mortgage bonds from the banking system. The bonds move onto the Fed's balance sheet, the cash moves into the banks, and the price of every long-dated bond in the country goes up because the largest buyer in the world is suddenly hoovering them off the market. Higher bond prices mean lower yields. Lower yields mean cheaper mortgages, cheaper corporate borrowing, and a lower discount rate for every stock. That is the whole machine. The Fed cannot legally cut rates below zero, so it found a different lever to pull on the same wheel.

Question 2

How does QE affect inflation?

Accepted Answer

In theory it should be inflationary, because the Fed is creating money. In practice, from 2008 to 2020, it wasn't, because the new reserves mostly sat parked at the Fed earning interest instead of being lent into the real economy. Banks did not want to lend, borrowers did not want to borrow, and the textbook chain from money supply to prices broke. Then 2021 happened. The Fed bought $4.5T of bonds in two years while Congress mailed out checks, and this time the money actually moved. CPI hit 9%. The lesson is not that QE always causes inflation. It is that QE plus fiscal stimulus plus a supply chain held together with tape causes inflation, and the Fed spent the next two years hiking rates 525 basis points to take it back.

Question 3

What is the difference between QE and printing money?

Accepted Answer

Functionally not much, semantically a lot. When the Fed does QE it does not print physical bills. It credits the seller's bank account with new reserves it just created on a keyboard. Those reserves are a liability of the Fed, matched by the bond it just bought as an asset. Technically the money supply has expanded; technically it is reversible if the Fed sells the bonds back. Printing money in the Weimar sense is what happens when a treasury runs out of buyers for its debt and the central bank is ordered to fund the deficit directly with no intention of unwinding it. QE is the polite version, with paperwork. The economics are a continuum, but the politics and the exit ramp are completely different.

Question 4

What is quantitative tightening?

Accepted Answer

QT is QE running in reverse. The Fed lets the bonds on its balance sheet mature without replacing them, which shrinks reserves on one side and shrinks the bond portfolio on the other. The current cycle started in mid-2022 and has rolled the balance sheet from $8.97T down to roughly $6.8T. The mechanics are slow on purpose: the Fed caps how much can run off each month so the bond market doesn't have to absorb a flood of new supply all at once. QT is meant to be boring. The 2019 repo blowup is what happens when it stops being boring, and it is the reason the Fed currently stops shrinking long before the balance sheet gets back to its 2007 size.

Question 5

Did QE work?

Accepted Answer

It depends on what you mean by work. It almost certainly prevented a second Great Depression in 2009, because the alternative was watching the financial system seize up with no one buying anything. It pulled mortgage rates to 3% and held them there, which let an entire generation refinance into payments they could afford. It also pushed every asset price in the country higher, which made the people who already owned assets richer and made the people trying to buy their first house priced out. The Fed got the recovery it wanted and the inequality complaint it didn't. Both are real. The honest answer is that QE bought time and the bill came due in 2022, in a different form, with a different name on it.

QE, in plain English.

From under $1T to nearly $9T in fifteen years

QE, answered.

QE, in plain English.

From under $1T to nearly $9T in fifteen years

QE, answered.

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