How should we compare welfare across pension systems in presence of differential mortality? A commonly used standard utilitarian criterion implicitly favors the long-lived over the short-lived. We investigate under what conditions this ranking is reversed.

Selection bias in genome-wide association studies (GWASs) due to volunteer-based sampling (volunteer bias) is poorly understood. The UK Biobank (UKB), one of the largest and most widely used cohorts, is highly selected.


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.