Does air pollution influence internal migration? An empirical investigation on Italian provinces

This research analyzes the role that air pollution plays, controlling for other socio-economic factors, in the movement of the population among Italian provinces. In spite of the increased prominence of environmental degradation in the public policy debate, empirical evidence on the effects of air quality on the attraction or retention of people is still limited in Italy. This study aims at partly filling this gap. Specific attention is paid to the environmental risks presented in provinces contaminated by air pollution. We investigate whether population moves, away from provinces with higher levels of air pollution emissions, toward those characterized by lower levels, net of the other contextual factors associated with migration streams. While many factors can come into play on mobility decisions, it is suggested that the increased concerns with environmental risks may be influential in shaping internal migration choices. We discuss the implications of our findings for future policy options.