投资、消费、出口作为拉动经济增长的三驾马车,近年来,投资对天津市经济发展起到了较好的带动作用。本文通过对2000年以来天津市投资变动情况及投资对经济增长关系的实证分析,研究投资对经济发展的作用及存在的问题,并结合当前经济新常态下的背景特征,探讨新时期投资的方向和路径,并提出有针对性的对策,为充分发挥好投资对经济增长的关键作用提供建议。 Investment, Consumption, and Export As the troika driving economic growth, investment has played a better role in driving the economic development in Tianjin in recent years. Based on the empirical analysis of the relationship between investment in Tianjin and the relationship between investment and economic growth since 2000, this paper studies the role of investment in economic development and its existing problems. In the light of the background features of the current new economic normal, this paper explores the investment direction in the new era And path, and put forward targeted countermeasures, to give full play to the key role of investment in economic growth to provide advice.