Depopulation ･ Sustainability

Japan is the world's most rapidly aging society, and neighboring Asian countries are also experiencing rapid population aging and declining birthrates. As a result, the overall population is declining. At the same time, immigration has become an increasingly important issue. Even in Japan, where the foreign population is relatively small, the number of immigrants is steadily rising. In an increasingly interconnected world, how can we create a sustainable society where people of diverse cultures and values coexist in harmony? This research will examine Japan's declining population from the perspective of population mobility, while also considering its relationship to individual well-being.
Meanwhile, the African continent has the youngest population in the world, with some areas having an average age below 20. Given that population aging is a common trend accompanying economic development, Japan's experience can serve as an example for other regions and for humanity as a whole in moving toward a sustainable future.