Hong Kong universities tumble down the world rankings
Hong Kong's universities have taken a tumble in an annual ranking of the world's top 500 tertiary institutions. The University of Hong Kong slipped out of the top 200 into the 201-300 quintile and City University and Polytechnic University fell out of the top 300 into the 301-400 quintile.

Hong Kong's universities have taken a tumble in an annual ranking of the world's top 500 tertiary institutions.

The Chinese University of Hong Kong was again the top university in the city and was its sole representative in the top 200.
The University of Science and Technology was the only other in the city not to fall down the rankings, remaining in the 201-300 category. Beyond the top 100, individual rankings are not given.
The survey is conducted annually by Shanghai Jiao Tong University's Centre for World-Class Universities.
Its rankings are based on indicators that include the number of alumni and staff who have won Nobel Prizes and the Fields Medal for mathematics; the number of "highly cited" researchers; and the number of articles published in the Nature and Science journals. About 1,200 universities are looked at in all.