What’s “not relevant” in the case of macroeconomic money supply changes are models that try to imagine the whole economic system as if it’s a barter economy con

What’s “not relevant” in the case of macroeconomic money supply changes are models that try to imagine the whole economic system as if it’s a barter economy containing just dollars and cheeseburgers. As you rightly point out, you have to have other goods, like salads; a labor force; and concepts like supply chains from which cheeseburger suppliers get their resources, before you can even begin to think about what will happen in an economy when you add more dollars. And then you need a better way to measure the effects than just using dollars. They’re one of your variables. I’m not remotely denying that adding dollars to the economy is inflationary, by the way! I’m just unimpressed by simple models that have little explanatory value and lead to bad thinking.