Princeton University says Professor Alan Krueger, a groundbreaking economist who served as a top adviser in two Democratic administrations, has died.
Princeton did not disclose the cause of death.
Krueger, 58, was an expert on the labor market and in particular on the impact of a minimum wage. His research concluded that a higher minimum wage did not generally slow hiring as many conservative critics have argued.
After serving as a Labor Department economist under President Bill Clinton, Krueger worked for President Barack Obama as a top Treasury official and then as chairman of the Council of Economic Advisers from 2011 to 2013.
Krueger had been teaching at Princeton since 1987. His research extended to such issues as economic inequality and the consequences of opioid addiction for the job market.