Demographic Transition Model (DTM)

The Demographic Transition Model (DTM) is a theory that describes how countries' populations change over time through five stages. Initially, societies have high birth and death rates, leading to stable populations. As they develop, better healthcare and living conditions reduce death rates, causing population growth. Eventually, birth rates also decline, stabilizing population size. In the final stage, populations may even decrease as families choose to have fewer children. The DTM helps us understand how economic development, health, and social changes impact population dynamics globally.