The ninth BBVA Foundation Frontiers of Knowledge Award in the Basic Sciences category has been awarded to Sir David Cox and to Professor Bradley Efron of Stanford University, for the development of “pioneering and hugely influential” statistical methods that have proved indispensable for obtaining reliable results in a vast spectrum of disciplines from medicine to astrophysics, genomics or particle physics. The BBVA Foundation Frontiers of Knowledge Awards seek to recognize and encourage world-class research and artistic creation, prizing contributions of lasting impact for their originality, theoretical significance and ability to push back the frontiers of the known world. These international awards span eight categories: Basic Sciences (Physics, Chemistry, Mathematics), Biomedicine, Ecology and Conservation Biology, Information and Communication Technologies, Economics, Finance and Management, Contemporary Music, Climate Change and Development Cooperation.