Research between different campuses of the same university I was recently applying for a tenure track position at a university.  I had found people who had adjacent research interests, and thought it would be good to mention them as possible collaborators for research.  However, I just found out that these researchers work at a different, smaller campus under the same university structure.
How common is collaboration between different campuses of the same university? To clarify, in my case,this isn't a state university either (for example,university of X- cityA vs university of X- cityB... these do tend to feel more like separate universities altogether), but rather a private university with various campuses and satellite locations. I'm sure that this is dependent on the university culture, but I wanted to see if anyone had any experience with this.
With the growing prevalence of networking technology, collaboration is easier than it ever has been before. I would think that collaboration across two campuses of the same university would be even easier. It is very probable that funding and resources can be more easily shared and that graduate students will have even an easier time working in such collaboration. I see nothing that would impede collaboration here.
I have worked with a national lab (which, although not a university, can at least somewhat resemble academia a little bit) that had two locations. We collaborated commonly between campuses. It made funding considerations quite simple and we produced quality research.