Massive population displacement due to political violence between 1981 and 1990
Between 1981 and 1990, 84.9% of displacement by violence (more than 600,000 people) occurred in Andean areas.
According to INEI's 1997 Survey on the Characterization of the Returning Population, 84.9% of the population displaced by political violence took place between 1981 and 1990. The total number of displaced would exceed 600,000 people. This massive displacement left many communities as 'ghost towns', without labor, greatly reducing the possibilities for economic development of those who remained in them.