Population studies
Studies on the demography of the Tari Basin were conducted for many years and are being continued through extensive data analysis, though the collection of new demographic data has now ceased. The database in Tari begins in 1970 and provides a valuable resource for a number of potential studies. Other population studies have been undertaken in the Asaro Valley, Madang, Wosera, Karimui, Bundi, the Anga linguistic groups and the Hagahai people of the Western Schrader mountains. Studies have been undertaken on fertility among the Gainj, in Hawain and as part of the major demographic studies in Tari. Papua New Guinea is passing through a protracted demographic transition, with a mixture of traditional and modern influences acting together, and with different parts of its society at different stages in the transition. This makes drawing general conclusions about population trends in Papua New Guinea difficult. The Institute took part in a recently concluded national Population and Family Planning Project.