This is something that calls my attention, specially here at SO UX: I'm seeing more and more questions (and answers) about marketing than any other thing, including the usability aspects of a site or app. Just to be clear, I have a degree in marketing, so I can see the obvious relations between marketing and UX.
However, I always thought the usability part was more related to design or even computer disciplines, yet more questions are on how to sell, how to convert, ROI, and other typical marketing areas. This is obvious as well, because most sites are being built to make money, but maybe because it's natural in me, the marketing part takes me like 2% of the time, while design and coding takes 98%. Of course I'm not considering research and testing, just the initial deployment of a site.
So, my daughter and a friend, both design students, were talking about their future as designers, and we started talking about UX. They were really interested and asked me what career should they study to pursue a career in UX (UX doesn't exist as a career here). I automatically answered "computer sciences", but it got me thinking, because I personally perceive that as most important, yet it looks to me marketing takes the lion's part nowadays.
In short: which is the closest discipline to UX assuming that UX doesn't exist as an university degree? Marketing? Design? Programming? Something else? Is there some kind of documentation that supports any of these options?