Although the most common explanations are those focusing on the economic dimensions, a general survey of the literature on demographic mobility reveals numerous economic, sociological, and demographic attempts to explain the initiation of internal and international migration. Migration is seen as a response to both endogenous and exogenous variables. These variables are, in sum, the overall effects of sociocultural, economic, political, and psychological conditions on the migrant. The decision to migrate is thus a response to one or many of the variables and the location of such variables. ...