Why do people migrate? A review of the theoretical literature

Massey et al. (1994) is a ground-breaking paper in the migration literature that discusses and unifies different migration theories. However, their review and synthesis is incomplete and fairly brief for researchers interested in a deeper understanding of the migration theory literature. This paper therefore aims to review the complete spectrum of economic migration theory from the 1950s until today and to show the differences and complementarities between the different approaches.