A group of experts on population and development planning met in Bangkok, Thailand in July, 1977. The meeting was organized by the United Nations Economic and Social Commission for Asia and the Pacific. This report is the result of background papers used at the conference, reactions to the papers, and further writing. The purpose of the meeting was to provide planners in the region with an opportunity to discuss effective means of integrating population factors into the over-all development planning process. A forum for input from researchers and planners was provided. Chapter headings include: (1) Integration of Population Factors Into the Development Planning Process; (2) The Use of Models to Integrate Population Factors Into Planning; (3) A Review of Some Specific Economic-Demographic Models; and (4) The Application of Models to Policy-Making. An introduction and a list of recommendations are provided, and a list of participants and of documents are appended. (MR)