中文摘要：

外部环境和内部资源如何影响企业履行社会责任？本文以中国制造业上市公司2011-2013年数据为样本,研究制度环境（舆论压力）和市场环境（竞争强度）对企业履行社会责任的影响,以及企业内部两种类型资源的调节作用。研究表明,舆论压力会促进企业履行社会责任,而竞争强度与企业履行社会责任呈＂∩＂形关系。进一步研究发现,企业资源（政治关系和冗余资源）正向调节外部环境对企业履行社会责任的影响。

英文摘要：

Despite the corporate social responsibility is a hot topic in current business practices and large numbers of research on the antecedents of the corporate social responsibility, there have been confusions on how exter nal environment and inter nal resource impact on companies dealing with corporate social responsibility. Inspired by firms engaged in corporate social responsibility for different kind of motivations（i.e., economic concern, legitimacy, and altruism）, based on the database of Chinese manufacturing companies listed on either the Shenzhen or Shanghai stock exchange between 2011 and 2013, this study selected 657 companies to explore how the relationship between two types of environment： institutional environment（i.e., Media exposure） and industry environment（i.e., Competitive intensity） to companies engaged in corporate social responsibility. The findings show that media exposure has a positive effect on corporate social responsibility, and competitive intensity has an inverted U-shaped relationship with corporate social responsibility. Furthermore, we find that firm＇s resources have significantly moderate effect on two types of environment to firms evolved in corporate social responsibility; That is, the positive effect of the media exposure to corporate social responsibility is strengthened when firms rich in political ties. And in contrast to the general suggestions that abundant resources can buffer the pressures from competitive environment to firm＇s activity and strategy, we find that slack resource positively moderates the effects of competitive intensity on firms engaged in corporate social responsibility. The results of this article provide specific managerial guidelines for firms dealing with external and internal environment and engaged in corporate social responsibility.