The James M. and Cathleen D. Stone Center for Inequality Dynamics (CID) was founded at the University of Michigan Institute for Social Research in 2019. The mission of CID is to: produce cutting-edge research on social inequality, especially wealth inequality, train the next generation of inequality scholars, and build data infrastructure and increase data accessibility.

The Health and Retirement Study (HRS) is a long-running study that examines middle-aged and older adults in the US, producing data that is used both domestically and internationally. As a panel survey, HRS follows approximately 20,000 U.S. adults, some of whom have participated in the study for 30 years, through the retirement and aging process.