“Since the second world war Europe has progressively surrendered its lead in higher education to the United States. America boasts 17 of the world’s top 20 universities, according to a widely used global ranking by the Shanghai Jiao Tong University. American universities currently employ 70% of the world’s Nobel prize-winners, 30% of the world’s output of articles on science and engineering, and 44% of the most frequently cited articles. No wonder developing countries now look to America rather than Europe for a model for higher education. Why have European universities declined so precipitously in recent decades?”