He is the Bruce and Virginia MacLaury Senior Fellow in the Economic Studies Program at the Brookings Institution, where he has been employed since 1968.
[1] Aaron was nominated to the Social Security Advisory Board (SSAB) by President Barack Obama, receiving confirmation to the post by the United States Senate in 2014.
[1] From 1977 to 1978, he was Assistant Secretary for Planning and Evaluation at the U.S. Department of Health, Education, and Welfare, and the next year, he chaired the Advisory Council on Social Security.
From 1996 to 1997, Aaron was a Guggenheim Fellow at the Center for Advanced Study in the Behavioral Sciences at Stanford University.
[6] On September 8, 2014, Aaron's nomination by President Barack Obama to be Chairman of the Social Security Advisory Board was confirmed by the Senate by a vote of 54–43.