PhD Candidate Fei Shu has published a paper in Aslib Journal of Information Management regarding China's cash-per-publication policy

W., Chen, B-C., & Shu, F (accepted). Publish or impoverish: An investigation of the monetary reward system of science in China (1999-2016). Aslib Journal of Information Management. 69(4)

Available at here https://arxiv.org/ftp/arxiv/papers/1707/1707.01162.pdf 

The paper has been reported by MIT Technology Review ,Times Higher Education, University World News and other media.