Population Density And Distribution
Since much of the early East Asian industry was fishing, the cities were mostly centered towards the coastline. Now that there's more of an industrial feel to the area, the people have begun moving more inland. The actual population fluctuation depends on the type of lifestyle the people lead. In China, the people's main domain is the central/coastal area. In Japan, almost all the people are located in the coasts. In Mongolia, the people are evenly spread on the steppes due to their nomadic lives.