We provide a common set of life-cycle earnings statistics based on administrative data from the United States, Canada, Denmark and Sweden. We find three qualitative patterns, which are common across countries. First, top-earnings inequality increases over the working lifetime.

One of the most important decisions a student can make during the course of his or her college career is the choice of major.

We characterize intergenerational income mobility at each college in the United States using data for over 30 million college students from 1999-2013. We document four results. First, access to colleges varies greatly by parent income.


The Oxford Series on Human Capital and Economic Opportunity will present state-of-the-art research from a variety of perspectives on the problems of opportunity, human flourishing, and public policy. Volumes in the series will be grouped in accordance with these themes and will be based on the work of HCEO members. In some cases, the volumes will contain research first presented at HCEO conferences, and in others will contain specially commissioned research. The series is published by the Oxford University Press.