  The Harris-Todaro model of the rural-urban migration process is revisited
under an agent-based approach. The migration of the workers is interpreted as a
process of social learning by imitation, formalized by a computational model.
By simulating this model, we observe a transitional dynamics with continuous
growth of the urban fraction of overall population toward an equilibrium. Such
an equilibrium is characterized by stabilization of rural-urban expected wages
differential (generalized Harris-Todaro equilibrium condition), urban
concentration and urban unemployment. These classic results obtained originally
by Harris and Todaro are emergent properties of our model.
