Abstract
Drawing upon survey data in 2000, this article analyses the maturity of women's community-based organizations in Papua New Guinea (PNG), comparing autonomous organizations with those that receive external support. The results of applying the Heckman model suggest that: (1) autonomous Mothers' Groups are more efficient in improving child nutritional status in the weight-for-age measure than those externally supported; and (2) higher maturity of these groups is associated with lower occurrence of underweight. Support for existing autonomous women's organizations is a particularly relevant intervention in PNG; governance with limited trust in formal institutions and modest outreach of services remain issues for large segments of the rural population.