> For example, when you make a bank transfer to another bank, the bank can not simply send over money created by itself.
Uhh, yes it can. That's what LIBOR is (supposed) to represent - short term unsecured lending between major banks. I.e. they can agree that the sending bank is now slightly more indebted to the receiving bank. It depends on what the involved banks agree on.
And because such things are based on trust they do blow up sometimes. For example during the panic in March there was a pretty wide gap between FRA rates (unsecured lending) and OIS rates (secured lending). FRA was quite a bit higher.
Edit: let me just add that this does not invalidate the rest of the article.
Thanks for this feedback. I have now updated the article substantially. The new version covers the possibility of banks lending money to each other as opposed to settling a transaction with cash/reserve deposits. Diffs: https://github.com/baobabKoodaa/blog/commit/c2f7fef53d621acc...
The various types of money usually have interest rates associated with them, and those rates tell you about the relationships between the types of money. For example there is an interest rate differential between the central bank money and the US treasuries (which are equivalent to USD money for most people most of the time), captured by the repo rate minus IOER. This differential blew up quite recently (in 2019), showing a temporary divergence between tbills and "real money".
In the past, before central banks, each region of the US had their own money, and merchants had conversion tables. They would literally tell you that, for example, Boston money is worth for me only 80 cents on the dollar. Much like today we quote prices on bonds.
Robert Shiller has some really good finance lectures on YouTube. The one about central banking:
Uhh, yes it can. That's what LIBOR is (supposed) to represent - short term unsecured lending between major banks. I.e. they can agree that the sending bank is now slightly more indebted to the receiving bank. It depends on what the involved banks agree on.
And because such things are based on trust they do blow up sometimes. For example during the panic in March there was a pretty wide gap between FRA rates (unsecured lending) and OIS rates (secured lending). FRA was quite a bit higher.
Edit: let me just add that this does not invalidate the rest of the article.