eng Science and Education Publishing Journal of Finance and Economics 2328-7276 2018-08-13 6 5 173 177 10.12691/jfe-6-5-2 JFE2018652 article Wenchuan Yang 1533293533@qq.com 1 Business School of Sichuan University, Chengdu, China This paper investigates the effects that credit constraints have on firms' productivity. The FGLS and OLS estimations are employed as our analysis tool. Then we use the unbalanced panel data of SMEs and innovation-oriented firms listed in the board of Growth Enterprise Market of China from 2001 to 2016 as the validation. In our analysis, the ownership of firm is also taken into consideration. The empirical results show that credit constraints don't have significant influence on productivity, while the effect actually exists when considering ownership. http://pubs.sciepub.com/jfe/6/5/2/jfe-6-5-2.pdf credit constraints firm productivity growth enterprise market FGLS method ownership