Abstract: Abstract:whether the external factors or the internal factors determinate firm's product innovativeness is a debatable topic,from the point of industry economics theory,the external environment determinate firm's product innovativeness,while from the perspective of strategy management theory,the firm's core competence determinate product innovativeness.in order to bridge this theoretical gap ,both external environment and core competence have been integrated into one model as independent variables.after using a survey date from 127 firms which analysed by multiple regression ,we found that the positive influence of external environment on product innovativeness is significant,while the positive influence of core competence on product innovativeness is not significant,what's more,core competence will negative moderate the relationship between the external environment and a firm's product innovativeness.

摘要： 摘 要：产品创新是由企业外部还是内部因素决定一直是一个有争议的话题，产业经济理论认为是外部环境决定产品创新，战略管理理论认为是核心能力决定产品创新，在此理论分歧上将外部环境和核心能力同时作为自变量来判定到底是哪个因素决定企业的产品创新，以及怎样调和上述两种理论之间的对立是一个需要研究的问题。利用127家企业的调查数据采用多元回归分析后发现：外部环境对产品创新的正向影响显著，而核心能力对产品创新的正向影响不显著，但是核心能力会负向调节外部环境与产品创新之间的关系。

关键词: 关键词：外部环境, 核心能力, 产品创新, Key words:External environment, Core competence, Product innovativenes