中文摘要：

在一般情况下,传统产业的企业创新与企业规模、市场集中度之间呈经典的倒U型关系,适度的企业规模和市场竞争能够促进企业创新。但是,战略性新兴产业的企业创新有自己的特点,因此有必要进一步考察这种倒U型关系是否仍然存在。该文研究表明：（1）战略性新兴产业的企业规模与企业创新之间存在着＂∽＂型三次曲线关系;（2）市场力量与战略性新兴产业的企业创新之间存在着显著的倒U型关系,企业拥有一定的市场力量客观上有助于企业创新;（3）市场集中度与战略性新兴产业的企业创新之间不存在显著的相关性。该文进一步分析表明,在战略性新兴产业中,企业规模、市场力量与企业创新之间的关系因企业的所有权性质不同而存在一定的差异。在中央控股企业和私有制企业中,企业规模与企业创新之间仍然体现为＂∽＂型关系,但这种关系在地方政府控股的企业中并不存在;市场力量对企业创新的正面效应主要反映在中央控股企业中,地方政府控制的企业和私有制企业尚未形成足够的市场力量来促进企业创新。相应的政策含义是,在以国有经济为主导的战略性新兴产业中,适当提升企业规模和增强企业控制市场的力量有助于企业创新,但前提是应当避免在国内市场上过度强化国有特别是中央控股企业的垄断地位,从而对企业创新产生抑制效应。

英文摘要：

Generally,there is an inverted-U relationship between the business size,market power and innovation in the traditional industry.However,it is necessary to further test whether the inverted-U relationship is still applicable to the strategic emerging industry.Empirical results show the ＂∽＂-shaped cubed-curve relationship between business scale and innovation,significant inverted-U relationship between market forces and innovation and no significant correlation between market concentration and innovation.Further analysis shows the different relationship between the strategic emerging of different ownership structure.In the central state-owned enterprises and private firms,there is still ＂ ∽＂-shaped curve between firm size and innovation,but not in the local state-owned enterprises.Also,market power has positive effect on innovation of the central state-owned enterprises rather than others at present.The policy implication of this paper is that within the strategic emerging industry dominated state-owned economy,it is appropriate to enhance scale and market forces and to avoid the monopoly resulting in the inhibition to innovation.