> College textbooks, for example, are priced monopolistically to maximize revenue as opposed to quantity.College textbooks are such an odd case because the incentives make no god damn sense.
Obviously they aren't Veblen; the actual owner (students) would always rather pay less.
But colleges and universities also don't make a ton of money on books. Two of the colleges I'm familiar with would lose money on their bookstore if they didn't have a monopoly on college-branded merchandise. It'd be better for them to just stop selling books and only sell clothes + electronics + price-gauged office supplies for the captive market ("I need some pens/paper/etc. but don't want to leave campus tonight"). Books lose money -- they're heavy, require a ton of extra labor, have thin margins, and you have to do all of that work twice so you can capture a few extra pennies in the used market. The best you can say is that they're pretty cheap loss leaders for selling hoodies and hats.
Instructors/professors don't really have an incentive to insist on expensive textbooks either. People always share anecdotes about being required to use the professor's super expensive book. But even if the prof wrote the book:
1. publishing just isn't very profitable (for me, 10 hours of consulting can make as much as about 30K book sales... maybe that goes up to 40 or even 80 hours for an expensive textbook. Maybe even a whole month of consulting for a super expensive hardback! But writing a book takes years of labor, so even on the upper bound it's just a horrendously bad way to make money as an author), and
2. this is rare enough to not explain systematic behavior -- remember that the US has 5000+ colleges and hundreds of thousands of professors. In most subjects there are fewer than 10 widely used textbooks.
One of the best Linear Algebra textbooks available is completely open source (I think the author is even on HN sometimes). For some reason, small colleges and local branch campuses of state university systems still insist on using $100+ Linear Algebra textbooks that are... quite bad. This is true in lots of other subjects, too.
It's like non-open-access academic publishing. Why do colleges/universities/professors keep going along with generating profit for the publishing industry? It makes no sense.