jtbell said:
It could be that small schools are more likely to hire part-time adjuncts to handle extra courses.
And the direction academia is moving to is one in which you have large numbers of adjuncts with very small number of permanent faculty. That's basically the model that University of Phoenix uses, and I think everyone is getting pushed in that direction. The good news is that if you want to teach physics, there are plenty of opportunities to do so. The bad news is that most of those opportunities do not pay a living wage and can be regarded as semi-volunteer work.
The reason that I find that disturbing is that it resembles the "two track" systems that you see in declining industries like autos. In those situations, older workers get paid on one scale which they keep until they retire, whereas newer workers get paid much less. It's disturbing because at least in the auto industry, it's see pretty clearly as a transitional stage to move toward less payment.
For a small college, adding a tenure-track position (and then granting tenure later) is a major long-term financial commitment.
It's a major long-term financial commitment for a big university.
I'd be rather interested in reading the "history of tenure." One thing that I've noticed is that if you go back to 1965, the concept of "tenure" isn't quite that unusual, since in 1965 most large industries had something similar. You went to work for a big massive company. Once you were there for a few years, as long as you didn't do anything really, really, really bad you basically had a job for life, and there are vestiges of that. I once heard some flight attendants talking in the background once, and one of them mentioned being made to work overtime, and that she was planning to file a protest with the union. I was thinking to myself. A labor union. Overtime. How quaint...
What happened was that in most industries this fell apart in the 1980's, and it wasn't necessarily a bad thing. As long as you have a strong supply/demand, it's often in the interest of the worker to be able to move from job to job easily.