Evidence item

The quoted passage directly supports the instrumental-variable estimate, 0.23% publication decline, and stronger effect during heavy-pollution years. DIRECT_TEXT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 16526

Source: Impacts of PM2.5 air pollution on high-skilled worker productivity in China · locator {} · excerpt hash sha256:ed3c755bcd91df89c274280e73c3702990b19521fe8fc55ce8399bb43b338c15

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. This effect was more pronounced during years of heavy pollution.