Do Central Banks Really Inflate? No, Say the Post-Keynesians
We can thus conclude that it is irrelevant for the multiplier process whether the central bank targets the quantity of money or the interest rate. What matters here is that the central bank is always ready to accommodate commercial banks' expansion of credit out of thin air. Without the central bank's support the likelihood of a sustained multiplier process taking place is close to nil. Hence the notion of the money multiplier is not applicable to a truly free-market economy.