Is there any literature that explains why the costs continue to rise on a yearly basis? If one buys into the disinvestment hypothesis it seems like the public u

Is there any literature that explains why the costs continue to rise on a yearly basis? If one buys into the disinvestment hypothesis it seems like the public university traditions should have plateaued at some point once the <$10K difference in state funding and private tuition normalized. Especially considering we've seen dramatic cost reductions in IT and a profusion of programs like MITx, Khan Academy, and others that should allow colleges to reduce costs.