If colleges and universities can hire a large number of graduates who have obtained doctoral degrees from top overseas universities, it will undoubtedly helpful to improve the quality of teaching and scientific research. Therefore, hiring graduates who have obtained doctoral degrees from domestic universities will not help improve the quality of teaching and scientific research.
Graduates, hired by colleges and universities, who have obtained doctoral degrees from top overseas universities are usually jointly cultivated by domestic universities and overseas universities, and they also have doctoral degrees issued by domestic universities, if true, will challenge the most to the above view.