The problem is worse among indigenous and Afro-descendent children: just 80% complete this cycle (ECLAC, 2008a). This is because when access to primary education is widespread, the investment needed to promote enrolment among disadvantaged groups (the extremely poor, inhabitants of rural areas, indigenous and Afro-descendent groups) is substantial and should focus not only on increasing the supply of education but also on ensuring the conditions for effective access to these services. This often involves action in multiple sectors.