The four stages of the Demographic Transition Model (DTM) in order from stage one to stage four are:
- Stage 1: Pre-Transition - High birth and death rates, resulting in a stable population.
- Stage 2: Early Transition - High birth rates, but declining death rates due to improvements in healthcare and sanitation, leading to population growth.
- Stage 3: Late Transition - Declining birth rates as a result of changes in societal values and access to contraception, along with low death rates, leading to slower population growth.
- Stage 4: Post-Transition - Low birth and death rates, resulting in a stable or slowly growing population.
These stages illustrate the transition of a society from high mortality and fertility rates to lower rates, significantly impacting population dynamics.