In this case, you can actually choose a university specializing in business, but the above four universities are all good universities in Seoul. Studying and managing in such a university will help your research direction to develop better.

On the whole, I suggest that Central University is good.

What is required is nothing. If you use language, most schools only need Korean level 5 for doctors.

Of course, the higher the level, the better. Korean master's degree should be above 3.75, and the amount is very high.

Domestic requirements are not clear.

However, there are generally two exams for doctoral entrance in Korea, which is completely different from that for master's degree. Master's degree is at most a telephone interview for international students.

There will be a telephone interview for doctoral admission, and foreigners in Korea will attend interviews with several professors for about 30 minutes.

And there is a written test about basic business knowledge, about 45 minutes.

But for those who really want to study for a doctorate, these things are still very simple.

I wish you success.