基于DEA-Malmquist模型的区域建筑业生产效率研究——以安徽省16市为例

Research on the Efficiency of Regional Construction Industry Based on DEA-Malmquist Model:A Case Study of 16 Cities in Anhui Province

以安徽省16市为研究对象,分别基于静态和动态视角,采用超效率SBM模型和Malmquist指数对其2011—2019年的建筑业生产效率进行了测算和分析。实证结果表明:安徽省16市建筑业生产效率城市之间存在分异;研究期内建筑业生产效率均值由大到小依次为皖北、皖中、皖南;16个目标城市中,蚌埠市最高,其绿色创新效率均值为1.189;铜陵最低,其绿色创新效率均值为0.634;统计年间全要素生产率大于1的城市有2个,其余14个城市均小于1;技术进步是安徽省16市建筑业生产效率均值小于1的主要因素,其降速最快的是安庆市,达9.9%;安徽省16市建筑业生产全要素生产率在2011—2014和2017—2019年间均小于1,而在2014—2017年间均大于1。总体上的全要素生产率为0.966,下降幅度约为3.4%。

With 16 cities in Anhui Province as the research object,under a static and dynamic perspectives respectively,a calculation as an well as analysis has been made of the production efficiency of the construction industry from 2011 to 2019 by using the super-efficiency SBM model and Malmquist index.The empirical results show that the 16 chosen cities in Anhui Province are characterized with a disparity in the production efficiency of construction industry.During the study period,the average production efficiency of the construction industry in descending order is Northern Anhui,Central Anhui,followed by Southern Anhui.Among the 16 target cities,Bengbu is the highest,with an average green innovation efficiency of 1.189;while the lowest is Tongling,with an average green innovation efficiency of 0.634.During the statistical year,there are 2 cities with total factor productivity greater than 1,with the remaining 14 cities less than 1.Technological progress is the main factor for the average production efficiency of the construction industry in the 16 cities in Anhui Province to be less than 1.Anqing city has experienced the fastest decline,up to 9.9%,among all the cities.The total factor productivity of production in the construction industry of 16 cities in Anhui Province was less than 1 in 2011—2014 and 2017—2019,but greater than 1 in 2014—2017.The overall total factor productivity was 0.966,witnessing a decrease of 3.4%.