Research On Rural Infrastructure Supply Efficiency Based On Three-stage DEA-MALMQUIST

Rural infrastructure has become the basic condition of rural residents’ production and life,so the supply of rural infrastructure is becoming more and more important.The effectiveness of supply is not only reflected at the scale level but also the technical level.Therefore,by studying the supply efficiency of rural infrastructure in various provinces and regions,we can take targeted measures to improve the supply efficiency of rural infrastructure from the perspective of inter-provincial differences and spatial distribution differences and provide a reference for the follow-up accurate poverty alleviation and rational allocation of rural infrastructure.Firstly,this study selects 30 provincial panel data from 2007 to 2019,selects inputoutput indicators and environmental factors variables according to the availability of data,and makes quantitative analysis on them;Secondly,the three-stage DEA model and DEAMalmquist model are used to analyze the rural infrastructure supply statically and dynamically.Finally,the quadrant diagram and Arc GIS10.6 software are used to classify and visualize the static and dynamic research results,so as to analyze their provincial differences and spatial distribution differences.The conclusions are as follows:From the static point of view:(1)Provincial differences.The comprehensive efficiency of rural infrastructure in most provinces has reached the forefront of production and is in an effective state,while some provinces have not reached DEA efficiency,so it is necessary to increase or decrease investment and improve the technical management level to improve its comprehensive efficiency.(2)Differences in spatial distribution.The spatial distribution of comprehensive technical efficiency of rural infrastructure in 30 provinces in China is quite different.The provinces with high comprehensive technical efficiency in the northeast and central regions are more than those in the east and west regions.The provinces with low technical efficiency are mostly located in the western region,and the distribution of the other three regions is similar;The provinces with low efficiency are mostly located in the eastern region,and the distribution of the other three regions is similar.Dynamic analysis:(1)Provincial differences.Except for Shanghai,the total factor productivity of rural infrastructure in 30 provinces in China has been in a negative growth state,mainly because its technological progress index has been in a negative growth state,which shows that there is no technological progress in rural infrastructure supply in most provinces.(2)Differences in spatial distribution.For the total factor productivity index,the spatial distribution is quite different,and the total factor productivity index of each region is less than 1.000,which indicates that the production efficiency of each region is declining,and the provinces with higher total factor productivity index are mostly located in the northeast and east regions;As for the technical efficiency change index,the gap between the northeast and the west is obvious.The provinces with higher index values are mostly located in the northeast,while the provinces with lower index values are mostly located in the west.As far as the index of technological progress is concerned,the provinces with higher index values are mostly located in the middle and northeast,while the provinces with lower index values are mostly located in the west and middle;It shows that the central region should improve its technological innovation ability,while the western region should pay attention to the change of its input-output scale based on promoting technological progress.Finally,based on the inter-provincial differences and spatial distribution differences in rural infrastructure supply efficiency in China,it is suggested to improve the efficiency of each province based on the current situation of supply efficiency in each province.Broaden the diversified financing channels of rural infrastructure and establish a capital restraint mechanism;Strengthen the technical organization and management level of rural infrastructure and rationally allocate resources;Strengthen the technological innovation ability of rural infrastructure and carry out intelligent management.