I have selected a single question for my master's thesis, within my field of Foreign Language Teaching. Most papers I have read contain just short literature reviews providing some background for a research study that occupied most of the writer's time. I think I could understand my question better if I focusing all of my effort on creating a 100-200 page literature review, examining and critiquing all existing literature on the subject, rather than on trying to come up with some new results.
Can a master's thesis be comprised of just a literature review? Do journals publish literature reviews on their own?