Abstract
This article presents the concepts of <em>perception of returns and negative externalities of growth</em> as two focal points of analysis to explain internal migration that occurs outside the rural-urban model. The discussion that arises suggests that it is necessary to analyze population growth resulting from population movements in semi-urban, metropolitan, as well as integrated or semi-integrated rural areas, going beyond the interpretation of motivations that are explained by potential options in the labor market and income. This study returns to the cost-benefit approach, and costs are explained by a causality associated with the negative externalities of growth when migrants perceive them as obstacles to achieving their goals of well-being and quality of life, they seek alternatives that generate higher returns for these purposes.