These networks tend to reduce some of the costs of migration (for example, costs faced upon arriving in a new country), thus making migration affordable to low-income people too. In addition, inequality may decline whenever a sizeable redistribution takes place among members of the villages from which migration originated. Returning migrants who acquired technical and entrepreneurial skills in advanced countries may also contribute to this growth acceleration (as observed for Turkey and Egypt by McCormick and Wahba, 2001).