I took an economics course from Heriot-Watt University. I had a pretty good handle on micro, macro, and Keynes. But the monetarist brought my mark down.
But I got the point that governments can use money supply and interest rates to find that balance between inflation and unemployment. But try to explain how on a test, that kind of escaped me.
On my bucket list is time to study this topic further.
Regardless, I'm not convinced the wizards know what they are doing and/or there's still too much political interference.