Under the discrepancy between the place of work and residence, value-added outflows to residence places from work places, accordingly the work places cannot enjoy the fruits of regional production of value-added, though suffering from external diseconomy arising in the process of producing value-added. Since the migration of value-added among regions violates interregional economic justice, the upper level governments need to support financially the regions suffering from its out-migration and exercise regional balanced development policy to equalize regionally the living conditions. By comparing the migration of value-added in the capital area of Korea and USA, the policy implications for each capital area can be suggested to compensate for the migration of value-added. The findings show that in Korea value-added flows into the capital area from national other areas and in the capital area it moves from exurban and suburban to core region. In USA it flows out of the capital area to national other areas and in the capital area shifts from core and suburban to exurban regions. Accordingly, the exurban regions in Korea and the core regions in USA need to be financially supported and developed in terms of living condition.