ABSTRACT
The paper revisits the migration-system approach, offering a more nuanced conceptual device for focused study of migration and, especially, region-level development. The paper outlines the main approaches to migration systems and links the conceptual framework to system-based discussion of regional development. The tentative conceptual lens formulated for studying the role of migration in regional development, and vice versa, is the regional migration system, or RMS. This conceptual focusing device is developed and tentatively tested in the specific case of Finland s Seinäjoki city-region. The shape of a regional migration system is recognised by means of statistical data, while qualitative data aid in exploring the system drivers, helping explain their shape and magnitude. Also, the paper discusses the contributions of the multilevel perspective and transition-based approach entailed for applying the RMS concept. The conclusions point to several further applications for the conceptual framework introduced.