中文摘要：

以购销交易中商业信任关系的形成机制和表现形式为研究视角，运用2009-2013年沪深A股主板上市公司数据，研究了良好的社会责任表现对企业商业信用成本的影响。研究结果发现：良好的社会责任表现能够促进企业在购销活动中与供应商形成较好的商业信任关系，降低使用商业信用的交易成本，并且这种促进作用不会受到企业股权性质的显著影响，但会受到买方企业市场竞争力的影响，仅在买方企业市场地位较弱时才会表现出来。文章的结论补充和丰富了关于企业社会责任的债务融资效应等经济后果问题的研究。

英文摘要：

This paper studies the effect of good social responsibilityperformance on trade credit cost using the data about main board companies listed in Shanghai and Shenzhen A share, from the perspective of the forming mechanism and performance of the business trust in the buying and selling processes. The study shows that good social responsibility performance can promote the establishment of relatively good business trust relationship between companies and their suppliers in purchasing and selling processes and reduce the trade cost of using the trade credit. What＇s more, such promoting role cannot be affected by the equity nature of a company, hut will be affected by the market competitiveness of the buyers, which will only be noticed when the buyer＇s competitiveness in the market is relatively weak. The conclusion of the study supplements and enriches the researches con- cerning such economic consequences as the debt financing effect of corporate social responsibility.