← Search

American Economic Review Vol. 114 No. 7 2024

Demographic Origins of the Start-up Deficit

Fatih Karahan1; Benjamin Pugsley2; Ayşegül Şahin3

1 Amazon (email: ) · 2 University of Notre Dame (email: ) · 3 University of Texas-Austin, and NBER (email: )

Abstract

We propose a simple explanation for the long-run decline in the US start-up rate. It originates from a slowdown in labor supply growth since the late 1970s, largely predetermined by demographics. This channel can explain roughly half of the decline and why incumbent firm survival and average growth over the life cycle have changed little. We show these results in a standard model of firm dynamics and test the mechanism using cross-state variation in labor supply growth. Finally, we show that a longer entry rate series imputed using historical establishment tabulations rises over the 1960s–1970s period of accelerating labor force growth.

DOI
10.1257/aer.20210362
Volume
114
Issue
7
Pages
1986-2023
Language
en
Sources
openalex bibtex:phds-export.bib crossref

Cite