There are compelling alternative explanations for the rising cost of education ( https://en.m.wikipedia.org/wiki/Baumol%27s_cost_disease#Educ... ). If the underlying cause were primarily administrative overhead, that should be readily apparent in the (public) budget of any public university. I’m not going to go do Silvergate’s research for him, but I’m surprised he doesn’t cite such a readily available piece of compe…
actually the Wikipedia article itself doesn't support your statement. Even if you take for granted there are some other explanations that contribute to the cost rise, administrative overhead is clearly a big factor and that's the issue that can be addressed and he's tackling, not e.g., the relative difference in productivity of educators and everyone else which is a questionable facto.
Per https://nces.ed.gov/programs/digest/d21/tables/dt21_334.30.a..., after two minutes of googling, if I am reading correctly, the percentage spent by four year institutions on “academic support”, which includes admissions, has remained at about 8% from 2000 to 2020. That seems like a basic statistic Silvergate should have on hand, and one that invalidates his hypothesis, right?