In this essay, I'd like to look at quantitative easing and what exactly is going on there. Many characterise it as 'printing money', a term I hate because, not only is it inaccurate, it is generally being used to scare, raising images of Weimar Germany and Zimbabwe. I think the real mechanisms are a bit more subtle.
First, I need to outline the basic financial structure that lies at the centre of these operations. The government has a central bank, the Bank of England, which it owns and which carries out fiscal and monetary operations on its behalf. Therefore, the Bank of England is an agent of the government. Each of the commercial banks (for example, Lloyds, Barclays, Nat West) have accounts at the Bank of England known as reserve accounts. These accounts are where their reserves of money are kept and they are used to aid the clearing of transactions between banks. The Bank of England also acts as an intermediary between the commercial banks and the government.
As is normally the case, when the UK government carries out its agenda, it will run a deficit. That means that it spends more than it takes in by taxation which is not a problem in itself. After all, the government issues its own sovereign currency. However, arbitrary 'fiscal rules' invented by successive governments mean that whatever the size of the deficit, the government must 'borrow' that amount. This is kind of a meaningless term for an entity that issues its own currency.
Anyway, via the Bank of England, the government creates loans, which they call 'gilts' or 'bonds' that it sells to the commercial banks. This is a primary market. The commercial banks can then sell on those loans to investors like pension funds. This is a secondary market. However, what these gilts really do is to drain reserves out of the economy. (That's another way of saying that they reduce the size of the reserve accounts that the commercial banks hold with the Bank of England.)
These gilts pay interest and after a set time period they mature. When they do, the asset holder gets their money back as well as the interest they gained. That interest is essentially new currency that the government has created. In other words, this is government spending and the interest payments on gilts is a major part of overall government spending, never mind defence or health. Some have described it as 'welfare for the well-off' and there is a truth to that.
The government can never have a problem with making the interest payments on gilts, or repaying the original capital because it issues the currency. Bond investors know this and therefore understand that the bonds are risk free - they are 'gilt-edged' so to speak. Indeed, a long time ago, these bonds were sold as paper certificates that were gilded with gold leaf.
Suddenly, there is a crisis: 2008 - debt market collapse; 2020 - Covid-19. The government needs to stimulate the economy but it has a problem. Having made political capital out of 'fiscal responsibility', it can't be seen to be directly injecting new money without there appearing to be some sort of balancing action.
What the government does is to have the Bank of England buy back some of the gilts held by the commercial banks. The banks get their money returned to their reserve accounts merely by the number in those accounts being made larger. The Bank of England gets the loan assets back. This is why the government itself holds £735 billion of the £2 trillion of national debt recently discussed across the media. Imagine making a loan to yourself. Bonkers!
To use technical jargon, this operation is an asset swap. When the gilts were originally sold, the commercial banks simply swapped their cash assets for loan assets. Under quantitative easing, these loan assets are swapped back to being cash. It is very much like transferring money from your current account to your savings account and back again. This is all that occurs in quantitative easing.
Although the commercial banks' reserve accounts at the Bank of England have grown, they are essentially back where they started. Furthermore, the interest-bearing side of the arrangement is curtailed. In principle, the banks won't get all of the new currency they were expecting as interest, had the gilts matured. Having said that, in recent years, the Bank of England has begun to pay interest on reserve accounts as well.
With the quantitative easing having occurred and now with fatter reserves, the theory is that the banks ought to be able to give out loans more easily. However, that is only if businesses actually want such loans. If the economy is in trouble, like it is at the moment, one wonders whether businesses would wish to take on loans to invest in plant and equipment for the production of goods that people aren't buying. This is why I think quantitative easing is a very poor mechanism for stimulating the economy.