This is my graduation thesis. Please revise and add according to the contents wr

This is my graduation thesis. Please revise and add according to the contents written below..
You can change or erase references and you can write 200 fewer words or more.
If you are going to choose more than one comparison country, one of them is China.
These contents ane what my professor requires me to revise.
1. The major problem is that we do not accept literature review as the only research method.
2. We can choose one (or two for comparison) country and do a case study to demonstrate something.
3. You can search for some secondary data or report or famous negotiation case to analyze one or two countries’ neogotiation culture.
4. As to literature review, it is used to propose hypothesis and then we use second or primary data to test the hypothesis.