【摘要】 随着社会经济的发展及人们环保意识的不断增强,公共交通事业的发展及其投资力度不断加大,公共交通在给人们带来方便的同时也在带动着经济的发展.通过扩展的生产函数模型,采用普通最小二乘方法对2003-2012年间的公共交通数据进行估计分析,并找出有异常值的样本点,然后利用稳健MM估计方法进行估计,结果表明公共交通变量对经济的影响具有正相关作用.更多还原

【Abstract】 As social and economic development and the growing awareness of environmental protection,the development of public transport services and increasing investment in public transport to bring convenience to people while also led the development of economy.By extending the production function model,using ordinary least square method to analysis the data of 2003-2012 years,and identify outliers sample point.Then MM robust estimation method to be used and effect of public traffic variables on the economy are presented.更多还原