Theory of Demographic Transition
The theory of demographic transition is a model that describes the process of population growth and decline in a society over time. It is based on the idea that as a country undergoes industrialization and economic development, its population growth rate will change in predictable ways.

Stages of Demographic Transition
- Stage 1: High Birth Rate, High Death Rate
- Stage 2: High Birth Rate, Declining Death Rate
- Stage 3: Declining Birth Rate, Low Death Rate
- Stage 4: Low Birth Rate, Low Death Rate

Factors Influencing Demographic Transition
- Economic development
- Education and healthcare
- Urbanization
- Social and cultural factors

Impacts of Demographic Transition
- Changes in population age structure
- Shifts in labor force participation
- Changes in family structure and household composition
- Implications for social services and healthcare

Challenges and Opportunities
- Aging population
- Economic implications
- Environmental impacts
- Policy considerations
In conclusion, the theory of demographic transition provides a framework for understanding how populations change over time in response to economic, social, and cultural factors. By studying this theory, policymakers can better anticipate and plan for the challenges and opportunities that come with shifting population dynamics.