【摘要】 2008年国际金融危机下的四万亿元投资大力推进了我国交通基础设施的建设。使用2008—2016年间全国70个大中城市的面板数据,将地铁开通作为一项准自然实验,采用连续时间双重差分方法实证检验了地铁开通对我国城市劳动生产率的影响。结果显示:①总体来看,地铁开通对城市劳动生产率有显著的正向影响,新开通一条地铁线路、增加地铁运营公里数显著地提升了城市的劳动生产率,而地铁站数量不是影响城市劳动生产率的关键因素;②分地区来看,地铁运营条数、运营公里数和地铁站数量对不同地区城市劳动生产率的影响存在区域差异,对东、中部城市的劳动生产率影响为负,对西部城市劳动生产率的边际影响显著为正。本文结论为推进我国不同地区城市的交通轨道建设规划提供了初步的经验证据。更多还原

【Abstract】 The four trillion investment to combat the financial tsunami in 2008 has vigorously promoted China’s infrastructure construction in transportation.Based on the panel data of 70 large and medium-sized Chinese cities from 2008 to 2016,this paper investigates the impact of the subway system on the city’s labor productivity using continuous time difference in difference method by regarding the subway system as a quasi-natural experiment.Results show that,on the whole,the opening of a subway line has a significant positive impact on urban labor productivity,while the number of subway stations is not a key factor.Regionally speaking,the number of subway lines and stations as well as operation miles has different effects on urban labor productivity in different areas:negative for cities in East and Central China and significantly positive for those in West China.The conclusions of this paper provided preliminary empirical evidence for the construction plan of urban rail transit in different regions of China.更多还原