If you open any economic textbook you will find a standard explanation of how banks operate. The basic story is that a person deposits some money (say €100) into a bank which then saves a percent of this (say 10%) as a reserve and then lends out the rest. This €90 is then deposited by whoever receives the loan, 10% of which is saved and the rest is lent out. This goes on and on until the original €100 has become €1,000. It is easy to see why students are told this story; it is simple, intuitive and gives them a basic idea of banking. Unfortunately, it is wrong.
There is strong evidence that contrary to the above story (known as the loanable funds theory) the banking system works the other way around. Deposits don’t create loans; loans create deposits (this is known as endogenous money). This is a more complicated story but a more realistic one that can better guide our view of the economy. Continue reading “Endogenous Money Or How Loans Create Deposits”