3Acs, Z. J., Audretsch, D. B. Innovation in large and small firms: an empirical analysis [J]. The American Economic Review, 1988:678-690.
4Rosenbusch, N., Brinckmann, J., Bausch, A. Is innovation always beneficial? A meta-analysis of the relationship be- tween innovation and performance in SMEs [J]. Journal of Business Venturing, 2011, 26(4): 441-457.
5Bowen, F. E., Rostami, M., Steel, P. Timing is everything: A meta-analysis of the relationships between organizational performance and innovation [J].Journal of Business Re- search, 2010, 63(11): 1179-1185.