Address the following questions as you write a literature review.
What theories/concepts do scholars use to explain a social phenomenon you are interested in? How do theories contradict or compliment with each other?
How have other scholars answered to your research question (or a similar question)? What kind of data did they use to do so? What are limitations of their research?
What are common findings across different studies on this topic? What are contradictions among them? How can you explain contradictions?
What questions are left unanswered, and are worth further investigation?
Based on what you have read, what would be a likely answer to your research question?
In other words, what hypothesis does this set of literature lead you to?