Earlier quoted context omitted.
> incentivized to overpay for care to maximize the size of their 20% slice. This. You see it anytime you mandate some profit cap or limit as a percentage of revenue. Companies will just manipulate the other variable to get more profits. Or they'll buy other related companies so they can do sneaky internal pricing shenanigans.
Only if no competitors exist, or all the competitors are colluding.
Competition focuses on trying to expand the market, rather than screwing a competitor and stealing all their clients.