So you've started with like, the million dollar question here. It's a really good question. And like you mentioned, your daughter's birth, this is a subject that people really connect with, because if you've had the occasion to have been in the hospital, or have a loved one be in the hospital, and then you start getting the bills, plural often, it can really be like, Wow, where Where are these coming from? What on earth is driving these prices? And so the short answer is that there is no short answer to what are the biggest determinants of hospital pricing. So as a bit of a landscape, up until very recently, the only data that was really available to study anything related to what the actual prices are that are being paid to hospitals was claims. And theese are basically receipts. These are administrative datasets that were not intended to be used in research. These are, these are big datasets that are kept by insurance companies, essentially, to record kind of the money that insurance companies are sending to providers. And so it has been really difficult up until recently to study the prices that are being paid to hospitals for services because of this data limitation. This was the only data source in town and it was not particularly well suited to study this question. And we can add to that the fact that hospital pricing is really, really complicated. Hospitals provide tnes of thousands of services ranging from room and board in the ICU to that little aspirin pill and everything in between. So tens of thousands. Hospitals can contract with dozens, if not hundreds of separate plans. And there can be a separate contracting structure for every single thing. To find, meaning, there can be a separate price point for every, for that aspirin pill, there could potentially be 200 different price. One for every different insurance company that the hospital contracts with. And so wrapping our heads around this as social scientists is a wonderful challenge, but it is a huge challenge. And the research so far has shown that the factor that seems to matter, and I won't say matter most because we don't really know what matter matters most. But the fact that it seems to matter is market power. Because the way that these prices are set, it's, it's like a two party negotiation between hospital and insurance company. And if a hospital has marketing, has market power, for example, if they're the only hospital in town, or if they have a super good reputation, they can kind of charge higher prices. Whereas if the insurer has the market power, like if they're very, very big, big, powerful insurer, they can set lower prices. And so that that market power difference, that's what a lot of researchers think is is one of the big factors.