中文摘要：

固定资产投资是社会经济的重要组成部分，是国民经济发展的重要推动力。根据重庆市1980—2015年的统计数据，由于重庆市在1997年成为直辖市，所以将所选取的数据以1997年为分界点分成设立直辖市之前和之后两个阶段进行分析，运用协整理论、误差修正模型、脉冲响应图和方差分解技术，对重庆市固定资产投资与经济增长的关系进行定量分析。结果表明，重庆市成为直辖市前后的固定资产投资与经济增长的关系是有差异的：直辖之前，两者并不存在长期稳定关系，但固定资产投资对经济增长仍有正向拉动作用；直辖之后，两者存在长期稳定关系和动态均衡机制，在这一关系中，虽然重庆市固定资产投资与经济增长相互之间都具有正向的脉冲响应机制，但仅有固定资产投资是经济增长的Granger原因。

英文摘要：

The investment in fixed assets is an important part of social economy,and an important driving force for the developmentof the national economy.Based on the statistical data of Chongqing City from1980-2015,as Chongqing city became a municipalityin1997,so the selected data were divided into two stages to make an analysis,that is,the year1997was taken as thecut-off point,the data before1997and the data after1997,using co-integration theory,error correction model,impulse responseand variance decomposition technology,to make a quantitative analysis of the relationship between Chongqing city fixed assets investmentand economic growth.The results show that there is a difference of the relationship between the fixed assets investmentand economic growth before and after the year1997:before becoming the a municipality,there is no long term stable relationship,but the fixed asset investment still has a positive role in boosting the economic growth;after becoming a municipality,there islong term stable relationship and dynamic mechanism,in which the Chongqing fixed assets investment and economic growth havea positive impulse response mechanism between each other,but only the fixed assets investment is the Granger reason of the economicgrowth.