SOCI 415 Lecture 4: Demographic Change Lecture
Document Summary
Video stage 1: pre industrial: high birth and death rates. Stage 2: transitional: high birth rates, decline in death rates. High population- improvements in economy, better jobs, more food and resources to support. Stage 3: industrial: increase in population with declining birth rates and low death rates. Birth rates decline because offspring have high chance to go adulthood, and smaller family, less resources, increase in employment opportunities to women, contraception, etc. Population continues to increase because of low death rate. Stage 4: post-industrial: stable human population, with low birth rates and low death rates. Due to economic and social changes to previous changes. Gaps close, human population will stop increasing and remain stable. Transition from high to low death and birth rates. High fertility, high mortality -> higher fertility, declining mortality -> low fertility, low mortality. Life expectancy has been increased rapidly from 1700 to 2100 and now debate on whether there is a limit on human lives.
