The Demographic Transition Theory 

Portland Community College Sociology Instructor Kim Smith explains the complexities of the
Demographic Transition Theory, along with its risks and policy implications.
Kim Smith received her Ph.D. in sociology from Indiana University in 2000, specializing in environmental sociology and social movements. She has taught sociology at Portland Community College since 1996 and has served as PCC’s Service-Learning Coordinator, Teaching Learning Center Co-Director, and Training Coordinator for PCC’s Summer Sustainability Institute (funded by NSF).