中文摘要：

在描述长江三角洲制造业省际贸易和国际贸易发展的基础上，利用江苏、浙江、上海三省市2002—2007年的投入产出表，实证检验了省际贸易和国际贸易对经济增长的影响。研究结果表明：省际贸易和国际贸易都对经济增长产生了正面影响，但省际贸易的经济增长效应要大于国际贸易，而且省际贸易和国际贸易对低技术行业的经济增长效应要大于高技术行业。

英文摘要：

This article gives a description of inter-provincial trade and international trade development in the Yangtze River Delta manufacturing, then examines the effect of inter-provincial trade and international trade on economic growth with the data of Jiangsu, Zhejiang and Shanghai in the input-output tables from 2002 to 2007. This article concludes that the inter-provincial trade and international trade have a positive impact on economic growth, but economic growth effects of inter-provincial trade is greater than those of the international trade,and economic growth effects of inter-provincial and international trade on low-tech industries are greater than those of the high-tech industries.