According to the content involved in the topic, you can determine the individual core theories you need. The study of risk category generally involves various risk theories; Generally, economic research between countries has comparative advantage theory; There are also human resources research and education and teaching, which often involve the hierarchy of needs theory and fairness theory. You need to decide according to your major and the topic of your thesis.
Literature research method is a method to obtain information by investigating literature according to certain research purposes or topics, so as to comprehensively and correctly understand and master the problems to be studied. Literature research methods are widely used in various disciplines.
Its functions are:
(1) Understand the history and current situation of related issues, and help determine the research topic.
② It can form an overall impression of the research object, which is helpful for observation and visit.
③ Contrast data of real data can be obtained.
(4) help to understand the whole picture of things.