Industries, Mega Firms, and Increasing Inequality

Any opinions and conclusions expressed herein are those of the authors and do not represent the views of the U.S. Census Bureau or the National Bureau of Economic Research. All results have been reviewed to ensure that no confidential information is disclosed (CBDRB-FY21-046, CBDRB-FY21-143, CBDRB-FY21-155, CBDRB-FY21- 323, and CBDRB-FY22-356). We thank Keith Bailey, Nicholas Bloom, Andrew Foote, and participants at the 2021Wage Dynamics in the 21st Century conference, the 2021 Allied Social Science Associations meeting, the 2022 Washington Area Labor Economics Symposium, the 2022 Research Data Center conference, the 2022 Society of Labor Economists conference, the 2022 Society for Economic Dynamics conference, and 2022 NBER Summer Institute, and the 2022 Federal Reserve Bank of Atlanta Center for Human Capital Studies conference for helpful comments, and we especially thank our discussants Salomé Baslandze, Christina Patterson and Ayşegül Şahin. John Haltiwanger was also a Schedule A employee of the U.S. Census Bureau at the time of the writing of this paper.

• April 5, 2022