30 Pages Posted: 7 Mar 2019 Last revised: 11 Mar 2019
Date Written: February 2019
We study the evolution of super star firms in the U.S. economy over the past 60 years. Contrary to common wisdom, sup-er stars firms have not become larger, have not become more productive, and contribution of star firms to aggregate U.S. productivity growth has fallen by more than one third since 2000.
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