You can go now. Oxford University ranks fifth in the world in finance, with excellent teachers and rich practical teaching experience, which can provide students with excellent teaching and training in the field of international finance. So Nanjing University can go to Oxford to study finance. The Ph.D. in Finance at Oxford University generally lasts for three years, and the application time is around March. The total IELTS score of Ph.D. in finance at Oxford University is usually at least 7.5, and some courses require excellent master's degrees in related disciplines.