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The impact of air quality on innovation activities in China.
- Source :
-
Journal of Environmental Economics & Management . Oct2023, Vol. 122, pN.PAG-N.PAG. 1p. - Publication Year :
- 2023
-
Abstract
- Severe air quality hurts human capital and threatens innovative outcomes. Using unique data containing 12.8 million patent applications in China, this paper examines the causal effect of particulate matter with a diameter of 2.5 μm or less (PM 2.5) on patent innovation. We estimate a two-stage least square model with thermal inversion as an instrumental variable. Our findings show that a one μg/m3 increase in the annual average PM 2.5 concentration leads to a 1.3% decrease in the number of patents. Annual fluctuations in PM 2.5 concentration levels across cities caused the total number of patents to decrease by 1.1% during the 2006–2010 period. From 2011 to 2015, the improvement in air quality increased the number by about 2.0%. It demonstrates another innovation co-benefit of improving air quality due to the tightened regulation. [ABSTRACT FROM AUTHOR]
- Subjects :
- *AIR quality
*HUMAN capital
*PATENT applications
*PARTICULATE matter
Subjects
Details
- Language :
- English
- ISSN :
- 00950696
- Volume :
- 122
- Database :
- Academic Search Index
- Journal :
- Journal of Environmental Economics & Management
- Publication Type :
- Academic Journal
- Accession number :
- 173888909
- Full Text :
- https://doi.org/10.1016/j.jeem.2023.102893