People migrate for economic, social, political, and environmental reasons. Economically, people move to find work, access opportunities, or escape low wages and poverty. Socially, people relocate to be closer to family/friends or access amenities. Politically, migration occurs due to persecution, war, crime, or violence. Environmentally, disasters like flooding force migration. Migration results from a combination of "push factors" that compel leaving an area and "pull factors" attracting to another due to better prospects. Both rural-urban and international migration have positives like cultural/skills exchange but also negatives like exploitation, overpopulation, and "brain drain" of skilled workers.