The 2025 QS World University Rankings have just been announced. As usual, when there are big fluctuations in scores and ranks, the media are full of words like soaring, rising, plummeting, and collapsing. This year, British universities have been more plummeting than soaring, and this has generally been ascribed to serious underfunding of higher education by governments who have been throwing money at frivolities like childcare, hospitals, schools, roads, and housing.
There has been a lot of talk about Imperial College London rising to second in the world and first in the UK, ahead of Harvard, Oxford, and Cambridge. Imperial's president, quoted in Imperial News, spoke about quality, commitment, and "interrogating the forces that shape our world."
The article also referred to the university's achievements in the THE world rankings, the Guardian University Guide, and the UK's Research and Teaching Excellence Frameworks. It does not mention that Round University Ranking has had Imperial first in the UK since 2014.
So what exactly happened to propel Imperial ahead of Harvard, Oxford, and Cambridge? Perhaps commitment and the interrogation of forces were there in the background, but the more proximate causes were the methodological changes introduced by QS last year. There have been no further changes this year, but the QS rankings do seem to have become more volatile.
In 2023, QS introduced three new indicators. The first is the International Research Network, which measures the breadth rather than the quantity of international research collaborations. This favored universities in English-speaking countries and led to a reported boycott by South Korean universities.
That boycott does not seem to have done Korean universities any harm since many of them have risen quite significantly this year.
QS has also added an Employment Outcomes metric that combines graduate employment rates and an alumni index of graduate achievements scaled against student numbers.
Then there is a sustainability indicator based on over fifty pieces of data submitted by institutions. Some reputable Asian universities get low scores here, suggesting that they have not submitted data or that the data has been judged inadequate by the QS validators.
Imperial rose by exactly 0.7 points between the 2024 and the 2025 world rankings, while Harvard, Oxford, and Cambridge all fell. Its score declined for three indicators, Faculty Student Ratio, Citations per Faculty, and International Students, and remained unchanged for International Faculty.
The improvement in the weighted score of five indicators is listed below:
Employment Outcomes 0.52
Sustainability 0.265
Academic Reputation 0.15
International Research Network 0.035
Employer Reputation 0.015.
Imperial has improved for all of the new indicators, very substantially for Employments Outcomes and Sustainability, and also for the reputation indicators. I suspect that the Imperial ascendancy may not last long as its peers, especially in Asia, pay more attention to the presentation of employability and sustainability data
