 Today the college only accepts students over the age of 21, both for undergraduate and graduate studies.The college tries to continue its liberal and pioneering ethos, considering its mature student focus as a modern means of providing higher education to those that have been excluded from it in the past.The college houses several research centres, including the Commercial Law Centre, directed by Prof Kristin van Zwieten, Clifford Chance Associate Professor of Law and Finance, which engages in research in all aspects of national, international, transnational and comparative law relating to commerce and finance; and the WellBeing Research Centre, directed by Prof Jan-Emmanuel De Neve, which applies interdisciplinary research and teaching on well-being at Oxford.