Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/322519 
Year of Publication: 
2025
Series/Report no.: 
CESifo Working Paper No. 11957
Publisher: 
CESifo GmbH, Munich
Abstract: 
This paper analyses trends and persistence in atmospheric pollution in ten US cities over the period from January 2014 to January 2024 using fractional integration methods. The results support the hypothesis of long memory and mean reversion in atmospheric pollution in all cities examined. They also indicate that Boston is the only city in the sample where atmospheric pollution exhibits a significant positive linear trend, though it is also characterised by the lowest degree of integration, which implies that shocks have transitory effects and mean reversion occurs at a fast rate.
Subjects: 
atmospheric pollution
particular matter (PM2.5)
fractional integration
long memory
persistence
JEL: 
C22
Q53
Q58
Document Type: 
Working Paper
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