Right. And you cannot turn the individual economic decisions of hundreds of millions of people into formulas that actually mean anything anyway. One of the great mistakes of the current gang of economists running things is that they believe their equations will predict our behavior.
A bigger problem than economists is all the MBAs that use Excel to do great damage in the world. It's hard to quantify and put into a Excel things like quality of service and customer experience. Excel leads to laying off good workers and replacing them with third worlders grabbed off a dirt road. Some MBA at Walmart is using Excel to report increasing store worker productivity, meanwhile their shelves go unstocked and their sales and customer loyalty is going downhill. Excel does not handle putting people into cell H537 very well.