Väestönmuutokseen
Väestönmuutos, also known as demographic transition, is a model that describes the historical shift from high birth rates and high death rates in societies with minimal technology, agricultural economies, and limited social mobility to low birth rates and low death rates in societies with advanced technology, industrial economies, and higher social mobility. This transition is typically divided into four stages.
Stage 1 is characterized by both birth and death rates being high and relatively stable. This results
Stage 2 witnesses a decline in death rates due to improvements in sanitation, healthcare, and food supply,
Stage 3 sees a further decline in death rates and a beginning of a decline in birth
Stage 4 is characterized by both birth and death rates being low and stable, leading to slow