It is better to study economics! This is a subject based on mathematics, and its application scope is wider than mathematics. Now the junior year is just well prepared, but economics is a hot subject, with high scores over the years. If you take the exam, you should consider your professional foundation and English level. Employment and economics are better than mathematics, and now the situation is very grim. College students are not favored by God for a long time, and so are graduate students. After three years of study, you may not find a better job. However, after all, their academic qualifications are higher than the above and their development prospects are better. After graduate school, they must have certain advantages.