We examine the introduction of automatic air pollution monitoring, which is a central feature of China's "war on …

collaborated with scientists in China during 2010-2014 with those who collaborated with scientists in other countries outside the U … coincide with a decline in the productivity of scientists with previous collaborations with scientists in China, especially …-investigation NIH funding and U.S.-China collaborations. We also provide suggestive evidence that our findings matter for the aggregate …

We argue that China, with its long history, a relatively stable political system, and multiple regime changes, provides …