Final answer:
There is no specific name given to families experiencing falling birth rates. This trend is part of the 'demographic transition' model, where birth rates and death rates decrease as a country transitions from a pre-industrial to an industrialized economic system.
Step-by-step explanation:
The reduction in family size due to falling birth rates does not have a specific name referring to the families themselves, such as 'Accordion families' or 'Falling families', etc. Instead, this population trend is part of what's known as the demographic transition, a model that describes changes in birth rates and death rates over time as a country develops from a pre-industrial to an industrialized economic system.
The stages of the demographic transition model include:
- Stage 1: High birth and death rates leading to slow population growth.
- Stage 2: Falling death rates and high birth rates leading to rapid population growth.
- Stage 3: Falling birth rates leading to slowing population growth.
- Stage 4: Low birth and death rates leading to very slow population growth.
- Stage 5: Very low birth rates leading to a declining population.
Factors such as economic development, changes in societal values, urbanization, and access to healthcare and education contribute to these patterns of declining birth rates and family sizes.