When the graduate students majoring in economics or finance just took the postgraduate entrance examination, their math foundation was better than the average person, and it was easy for them to get high marks in mathematics. You should know that mathematics is the most important thing, in the postgraduate economics category. In addition, economics is not very difficult. Advanced macro and advanced micro are basically mathematical models, and it is easier to learn after learning mathematics, so it is easier than crossing to other majors.
Secondly, after graduate school, many economic research papers are based on mathematical models, and writing and distributing papers are dominant, which is much easier than those who are from graduate school to learn advanced macro and micro.
It is still very advantageous to take computer major as the algorithm. Algorithm engineer earns tens of thousands of dollars a month but can't afford to recruit people. This scientific mathematics is still very advantageous. In addition, you can also take an examination of graduate students in economic management, or you can take an examination of actuarial major in Fudan, and become an actuary in the future. This is a high-paying industry. The key is to see which one you like.