Really, what was my definition of a commodity? Perhaps you can point to it. I wonder if you would consider the definition of a durable good so broad as to be useless. Or a foodstuff. I think rather your definition is useless because literally nothing in the world would be considered a commodity. You gave oil as an example of a commodity, or at least Emily did, and I showed that according to your definition it was not.
You stated that cars were a commodity, so by implication your definition includes cars as a commodity - which is silly.
Commodities are products where the main differentiation is on cost. There can be different grades of commodities. This is well accepted.
Cars are not commodities as there is loads of distinction on factors other than cost. Brand image plays a huge part. Luxury marques are *mostly* brand image - there is a reason that Toyota created the Lexus marque, rather than just have those care badged as Toyotas.
Even when you move away from luxury cars, people go for test drives, and are influenced by how they feel in the car.
I believe in cartels. I just don't think they're sustainable, nor particularly effective. It is possible that our economy would work better if the government got out of the anti-trust business altogether, since those areas in which it does some good are likely swamped by those areas in which it does some bad. In any case, I don't have a strong opinion about anti-trust law, although there are some famous economists who take my side of the argument (including Milton Friedman and his son David). Furthermore, it was a digression and being used by you as something of a distraction from a losing argument. The focus of Emily on the definition of commodity is a similar derailing strategy. I didn't even use the word commodity first, but rather the term commoditization, but because she has no actual arguments, she tries to use semantics as a distraction and as a platform for launching insults. I've been disappointed, to say the least.
There are plenty of examples of monopolistic practices and cartels harming the consumer, I've just remembered another, but to be honest I am not trying hard to think up examples, because almost any single example is sufficient to disprove your position.
https://en.wikipedia.org/wiki/California_electricity_crisis
And what exactly do you do for a living that makes you such an expert on healthcare? Or the US in particular? Do you even have any experience with the US healthcare system? Because from your posting history, it sure seems like you don't.
I don't claim any expertise, and I am a semiconductor engineer. Some of the products I design and develop and release to the market are commodity products and some are not.
The industry I work in is capital-intensive, and so there is a huge focus on trying to understand the cost model, and whether a particular project will have a good business case. I am familiar enough with cost models to know some of the basic approaches that a large hospital organisation will have to take.
You seem unfamiliar with even this.
Meanwhile you disparage the expertise of Emily's Cat, describing her as a "bean counter", which is a gross misunderstanding of what actuarial work is. She does have direct experience in making assessments of probability distributions of costs for medical treatments.
To reiterate: I don't claim any expertise, but I do claim that my reasoning is transparent and backed up by examples. You claim expertise, but haven't demonstrated it; you have extremely eccentric ideas*, which you defend by appeals to non-verifiable authority, and base your reasoning on theory with no examples.
Anyway,
That is a digression from your assertion that a $500k bill for services for "
an extremely rare form of pediatric leukemia," could be regarded as having any meaningful features in common with commodities. You also assert that such treatment is not bespoke, which implies that your definition of "bespoke" is uselessly narrow.
Changing tack to your proposed system
I believe you accept that 50% of medical costs in any year are due to 5% of patients, and that 20% make no claim.
Your proposed solution is to give people $5k and if they spend $1k on healthcare, they get the remaining $4k to spend as they see fit.
How is that $5k to spend on healthcare? It is $1k to spend on healthcare plus $4k.
You then have a catastrophic coverage for certain agreed treatments if the cost exceeds $5k.
A rational economic actor will ensure that the get billed for $1k of healthcare in the year even if they don't need it. If you let the market find the price, an end-of-financial-year doctor's appointment might end up having a market price of $1k. If not, why not, and how are you going to prevent that?
For the 5% of patients responsible for the biggest costs, why should they shop around for treatment? They know that they are going to spend far more than that, and they are going to get catastrophic coverage (according to your proposal). In fact, again, the rational approach would be for them to spend the $5k as quickly as possible, so that they get onto the catastrophic cover as soon as possible. Even if they did shop around, how would getting the best price on $5k worth of treatment bring down rest of the cost for $500k treatment?
Your suggested system would do nothing except increase the spending to $5k for the 20% that currently would not claim anything.
You also haven't stated why you think that $1k is a reasonable (indeed desirable) amount to spend on healthcare for a demographic that presumably ranges from 18-60.
*Not just the definition of a commodity, but also the assertion that information asymmetry is greater when deciding on a smartphone than expensive lifesaving treatment. This is, frankly, bizarre. You missed out the bit about captive markets, and time constraints (well you stated that these weren't problems, but didn't explain why). Also you asserted that monopolies generally require state facilitation.