Final answer:
The Demographic Transition Model depicts the progression from high to low birth and death rates as nations develop. It includes four stages: high birth/death rates (Stage 1), high birth/declining death rates (Stage 2), declining birth/death rates (Stage 3), and low birth/death rates leading to population stability (Stage 4).
Step-by-step explanation:
The question refers to the Demographic Transition Model (DTM), which describes the transition from high birth and death rates to low birth and death rates as a country develops from a pre-industrial to an industrialized economic system. This model consists of several stages:
- Stage 1: characterized by high birth and death rates; examples include rural pre-industrial societies of the 1800s in the United States.
- Stage 2: marked by a high birth rate and declining death rate; occurring in countries beginning to industrialize, like modern-day Afghanistan.
- Stage 3: declining birth rate with a still decreasing death rate, associated with high urbanization, like Mexico.
- Stage 4: both birth and death rates are low, leading to population stability; seen in post-industrial societies such as Sweden.
As countries advance through these stages, they experience different population growth trends, healthcare improvements, and societal changes.