Intergenerational mobility—the association between parents’ and adult children’s economic wellbeing—is an important sociological concept because it provides information about inequality of opportunity in society, and it has gained relevance in the recent past due to the increase economic inequality in most of the affluent world. This article provides an overview of the different measures of mobility used by sociologists and economists, as well as main empirical findings about mobility. I then move to topics that push mobility analysis beyond its bivariate focus: The association between intergenerational mobility and economic inequality, the mechanisms for mobility, and the validity of mobility as a measure of inequality of opportunity. I suggest that the association between mobility and inequality is likely spurious, driven by varying institutional arrangements across countries, and that mobility analysis is most useful when focused on describing the bivariate intergenerational association across countries and over time.
