1. Market concentration has risen.
2.Average markups have increased.
3.Average profits have increased.
4.The labor share of output has gone down.
5.The rise in market concentration and the fall in labor share are positively associated.
6.The labor productivity gap between frontier and laggard firms has widened.
7.Firm entry rate has declined.
8.The share of young firms in economic activity has declined.
9.Job reallocation has slowed down.
10.The dispersion of firm growth has decreased
NBER Working Paper No. 25755April 2019
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