American Economic Review
ISSN 0002-8282 (Print) | ISSN 1944-7981 (Online)
The Effect of High-Tech Clusters on the Productivity of Top Inventors
American Economic Review
vol. 111,
no. 10, October 2021
(pp. 3328–75)
(Complimentary)
Abstract
The high-tech sector is concentrated in a small number of cities. The ten largest clusters in computer science, semiconductors, and biology account for 69 percent, 77 percent, and 59 percent of all US inventors, respectively. Using longitudinal data on 109,846 inventors, I find that geographical agglomeration results in significant productivity gains. When an inventor moves to a city with a large cluster of inventors in the same field, she experiences a sizable increase in the number and quality of patents produced. The presence of significant productivity externalities implies that the agglomeration of inventors generates large gains in the aggregate amount of innovation produced in the United States.Citation
Moretti, Enrico. 2021. "The Effect of High-Tech Clusters on the Productivity of Top Inventors." American Economic Review, 111 (10): 3328–75. DOI: 10.1257/aer.20191277Additional Materials
JEL Classification
- D62 Externalities
- J24 Human Capital; Skills; Occupational Choice; Labor Productivity
- L60 Industry Studies: Manufacturing: General
- O31 Innovation and Invention: Processes and Incentives
- O34 Intellectual Property and Intellectual Capital
- R32 Other Spatial Production and Pricing Analysis