Alan B. Krueger (1960-2019) was the James Madison Professor of Political Economy at Princeton University and a research sssociate at the National Bureau of Economic Research. A labor economist by training, he was known for his early work in finding that the minimum wage did not reduce employment among low-wage workers. He also studied the role of the opioids epidemic in reducing employment among men. From 1994 to 1995, he was the Labor Department’s chief economist under President Bill Clinton. In President Barack Obama’s administration, he was an assistant secretary of the Treasury from 2009 to 2010 and chairman of the Council of Economic Advisers from 2011 to 2013. He received the Kershaw Prize, Mahalanobis Prize, and IZA Prize (with David Card), and was a fellow of the American Academy of Arts and Sciences.