First and foremost, there must be a preliminary plan. Students who want to apply for big innovation projects can form a team with several like-minded students, discuss several topics and write a simple outline for each topic.

Second, the topic should be novel. A good topic selection is half the battle, and a bad topic selection is the beginning of failure. Good topics are generally new, hot, important or interesting. Try not to choose the old topic, "new wine in a bottle" is risky. Don't choose topics that are too big and take up too much space, but be good at seeing the big from the small.

Third, the theoretical perspectives are diverse, but the framework must be unified. Generally speaking, a standard economics paper has only one analytical framework and one theory, so that it can be logically self-consistent.