Evidence item
The quoted passage directly reports an instrumental-variable design combining air-quality data with bibliographic publication data. DIRECT_TEXT
Source: Impacts of PM2.5 air pollution on high-skilled worker productivity in China · locator {} · excerpt hash sha256:41376b4790333696432552cd8d9482bd2b03373d5aa009e0e58bef7236001eef
Exact excerpt
Using an instrumental variable design and combining air quality data with a bibliographic dataset of publications, we found that an increase of 1 μg m−3 in the annual concentration of PM2.5 ... causes a decline of 0.23% ... in publications.
Linked claims
| Claim | Direction | Relevance | Steps | Counted |
|---|---|---|---|---|
| a74bd71d | SUPPORT | DIRECT | 0 | yes |
Audits
None.