나이지리아에서 여아가 학교에 머물자 조혼이 급감했다

This study demonstrates that a multi-faceted 'big-push' intervention can effectively dismantle systemic barriers to girls' education and drastically reduce child marriage rates even in conservative environments. The high benefit-cost ratio of 2.41 proves that investing in gender equality is not just a social imperative but a highly efficient economic strategy for long-term national development.