directs attention to both ends of a migration flow,
with a corresponding necessity to explain stability and mobility in each location;It examines one flow in the context of other flows, or one destination in relation to alternative destinations;
It highlights the diverse linkages between places, including flows of information, goods, services and ideas, as well as people;
It suggests comparisons between places, thus calling attention to the disparities and imbalances that are a source of energy in the system;
It brings into focus the interconnectedness of the system, in which one part is sensitive to changes in other parts;
It reinforces the view of migration as a dynamic process, a sequence of events occurring over time.