You responded to a point from a previous poster with "In countries with mostly free higher education doctor’s salaries are less on average than in the U.S." as if those doctor low salaries were the result of less debt (which is your argument throughout this thread - that debt makes salaries higher), and I pointed out that this is not unique to doctors, and the costs across all fields don't seem to have debt/salary correlation. Your evidence for your thesis does not hold up outside doctors, and then only for US doctors, so it's hard to believe there is some mystical economic law working only for that sub-case.
>the debt level doesn’t come into play when determining the salary needed to attract the labor of highly intelligent
It does. However your claim is "You really think having several hundred thousand dollars in student loans doesn’t in any way affect salaries?" as if the debt forces employers to pay more. It nearly certainly works the other way - if you are going for a job that pays a lot, you are willing to take on more debt to obtain it. Thus those teaching students how to make so much money are able to charge more for teaching that skill.
This is the exact same causal direction of pretty much any asset. Something is more valued, so people will pay more to obtain it. You're implying the other direction.
>To be able to attract the talent the salaries need to be high enough to service the debt
This again makes little sense as to direction. Quants could get PhDs in STEM (mine is in math, and I have a lto of quant friends) and they make vastly more than all but the highest doctors, yet they don't have all the debt. As the quant field matures (and if it lasts), the cost to obtain training will likely rise.
Not sure what your paper shows, except that which I already claimed: doctors are rare, skilled, and take a long time to make. As such they will get paid a lot because their skills are in demand. This has zero to do with debt - this is exactly supply and demand.
Next, again because of supply and demand, those able to teach people to become doctors realize those doctors will make a lot of money, so they, like all free market actors, will charge what the market will bear. Thus the causation is opposite what you claim - each step in the chain absorbs what the market will bear.
It's not like schools decided to charge far beyond what anyone would pay, and later the wages rose to pay for that debt beyond what people could previously pay. It's more that as wages rose, due to demand, school increased prices to capture what the market would bear to provide those skills.