While the state is often taken as the relevant analytical category, it is equally important to factor-in the wide range of other factors and actors that are involved in international migration. Moreover, by thinking about the scope for action on the part of migrants (on their decision-making), it is also possible to think about the structural constraints and impidiments that constrain action. One example of this is that the very poorest people are less likely to move while those with more resources are more able to move. Moreover, the possession by potential international migrants of human and social capital is strongly correlated to the distance of movement. Most international migrants actually move relatively short distance to neighboring states, which brings into view the importance of international migration between relatively low income countries. States are key actors, but they are not the only actors.