Dong, Huijian, and Xiaomin Guo. “Diminishing Research Quotient: Does Capital Availability and Labor Productivity Crowd Out R&D Productivity?”. International Journal of Business & Economics (IJBE) 5, no. 1 (May 1, 2020): 9–21. Accessed April 30, 2026. http://ijbe.ielas.org/index.php/ijbe/article/view/20.