ABSTRACT
Population problems play an obviously important role in any physical planning. The goals of such planning are always social ones, and planners always have to take into account the human community for which the plan is to be prepared. The primary interest, as far as population problems were concerned, had shifted toward minimalization of all migratory movements, both permanent migrations and pendular commuting. This approach became a decisive factor in the location of new industries, and it led to some very careful studies of manpower reserves. Regional variations should be manipulated and correlated through migrations in such a way that the desired mean structure of population at the national level will evolve. This will involve some interregional transfers of population and, with time, some definite convergence in regional demometric indexes. Migrations have a specific influence not only on the vital statistics of areas that are sources of the migration, but also on the areas that receive them.
