Schools with better economic majors are: Korea, Sungkyunkwan, Hanyang and Seoul. Among them, in addition to the economics major of Hanyang University, several other schools are required to submit an internationally recognized English certificate-IELTS or TOEFL. Korea and Sungkyunkwan TOEFL require IBT80 or above, and Seoul requires IBT94 or above. Ielts 6.5
If the chosen major is similar to or the same as that of domestic universities, it is more favorable to apply for a major change, and it is also possible to re-select a major, but the degree of admission guarantee for a major with a large span is slightly inferior.