The purpose of this study is to measure the social and economic effects on the respective region in the case that if large scale industry will be allocated in the depopulated region where has migrations continuously.
Getting along the allocation of large-scale industy, the secondary industrial activities will be changed. The fundamental way of this study is to measure the effects which are brought by these changes to the population structure, and the primary and tertiary industrial activities. The changes of the secondary industrial activities are classified by the following five types.
1) the industry newly allocated in the reclaimed land (large-scale industry)
2) the allocated industries correlated to the industry newly allocated in the reclaimed land
3) the existing industries correlated to the industry newly allocated in the reclaimed land
4) the progressive industries not correlated to the industry newly allocated in the reclaimed land
5) the depressive industries not correlated to the industry newly allocated in the reclaimed land
These changes of the secondary industries produce good results to employment oppotunities and to rise income level, and prevent the migration in the respective region. They also bring to the primary industries the shifting of labor forces and the changes reserved land to residential, industrial and commercial uses, and result in rising the productivity of the primary industrial land. Moreover, as for the tertiary industries, they bring the increase of consumption and the expansion of marketing area with rise of income level.
The theoretical model building is made depending on these fundamental way mentioned above. But, from the limitation of data, the effects are forced to measure by a pilot model, and it is actually applied to the depopulated region of Eastern Ky_??_sh_??_. As the result of measurement, it is found that the allocation of largescale industry brings great immense of induced and developed effects. On the other hand, the environmental pollution and destruction are hard to include in the model and further studies about these problems are pointed out to be needed.
