I'm curious if you've ever polled your readers/run a piece on the "disadvantages" of getting your graduate and undergraduate degree from the same research institution (from a top 10 program, in particular).
...based on life circumstances ([redacted], not wanting to be out of school for too long before going back, etc.), I'm looking at getting a PhD from the same place I got my BS. I've had a few years of research experience in another lab (same institution, though), and I'd be shifting fields somewhat from my undergraduate research focus.
Any thoughts from you or the readers regarding getting academic and/or industrial positions? Is it as simple as explaining the circumstances to a potential employer?That's a good question -- I don't quite know the right answer, but I suspect that if it works for you (i.e. you find a good group, that you did well during your graduate work), it does not pose a problem.
I suspect that some (most?) academic institutions might give pause to a tenure-track candidate that worked in the same group for B.S. and Ph.D., but that's rare enough that I doubt there's a good data set to base a judgment on. (I believe it's discouraged.) I don't think that most industrial employers would care, but again, they'd be looking at the quality of your work first. Being able to explain the circumstances would probably be good enough.
I would also ask myself: do I have to get a Ph.D.? Is that the degree that aligns with my long-term goals, career and otherwise? Readers, what say you?