Casey B. Mulligan, Professor of Economics at the University of Chicago, received his Ph.D. in economics from the University of Chicago in 1993 and has also served as a visiting professor teaching public economics at Harvard University, Clemson University, and the Irving B. Harris Graduate School of Public Policy Studies at the University of Chicago. He is affiliated with the National Bureau of Economic Research, the George J. Stigler Center for the Study of the Economy and the State, and the Population Research Center. He has received awards and fellowships from the Manhattan Institute, the National Science Foundation, the Alfred P. Sloan Foundation, the Smith-Richardson Foundation, and the John M. Olin Foundation. His research covers capital and labor taxation, the gender wage gap, health economics, Social Security, voting and the economics of aging.

Mulligan has written widely on discrepancies between economic analysis and conventional wisdom. Before Side Effects, he wrote The Redistribution Recession and Parental Priorities and Economic Inequality. He has also written numerous opeds and blog entries for the New York Times, the Wall Street Journal, the New York Post, the Chicago Tribune, blogsupplyanddemand.com, and other blogs and periodicals.

He joined IZA as a Research Fellow in January 2015.