It is similar to suburbanization, a residential trend in which a large number of the population move away from the metropolis as the inner city becomes overcrowded.
In a market economy the massive competition and overcrowding of the metropolitan area forces people and businesses to move out to less-industrial areas with less traffic congestion.
Modernization in the social, economic, and technological fields of a country is a factor in accelerating industrial deconcentration.
This phenomenon is more apparent in nations that have been industrialized for a longer time.
Industrial deconcentration is a conscious goal in a comprehensive decentralization policy: to deconcentrate population without excessive commuting, jobs need to be created outside the cities.