Economic theory in western nations is so hilariously skewed towards free market capitalist think that obvious models are just straight up missed, or sometimes obviously wrong conclusions are drawn. Most economics start with the understanding that the answer or cause is
something about free market forces, and then work backwards.
For example, when talking about the economics of healthcare (or anything else, but lets start with healthcare), the conversation is approached from the get-go under the assumption that:
1. Healthcare is already a free market.
2. It is possible for healthcare to be a free market.
1. is just not true. Healthcare, in the US and and all developed nations, is not a free market. But, economists will just assume it is, because they assume everything is a free market, and then apply free market dynamics. Basically, they skip step 1, and go to step 1000.
And, for number 2, it's very debatable. IMO no, healthcare cannot be a free market, just by virtue of what healthcare is as a service. But that's debatable, I won't get into it.
Point is, we immediately start our economic understanding based off assumptions on top of assumptions that come from free market thinking, thinking around IP, thinking about consumer knowledge, thinking about access, etc.
We make absolutely wild and unsubstantiated claims for free, and nobody checks them.