Higher education in the learning society : report 5 : widening participation in higher education by ethnic minorities, women and alternative students : report 6 : widening participation in higher education by students from lower socio-economic groups and students with disabilities : report 7 : rates of return to higher education : report 8 : externalities to higher education? a review of the new growth literature : report 9 : higher education and regions. (National Comittee of Inquiry into Higher Education, 1997)