Research On Chinese Agricultural Production Efficiency Based On Super-SBM And Malmquist TFP Index

Agriculture is foundation of national economy.China's agricultural development is rather lower than other countries,and the domestic agricultural regional development is not balanced.So how to improve agricultural production efficiency and change the extensive inefficient growth way is worth studying.Domestic and foreign scholars take various models in different spatial scale and time span of regional agricultural production efficiency study.On the basis of exploring the advantages and disadvantages in the works of pioneer contributors,this paper takes the Super-SBM,Malmquist TFP Index and Tobit model to study China agricultural production efficiency,and offers relevant recommendations for production efficiency improvement.This paper first analyzes the current situation of China agricultural development,and finds that China is weak in agricultural production intensification and mechanization by comparing the agricultural indexes of China and other countries in 2014.In addition,through spatial analysis,author finds that agricultural development is not balanced between the eastern and the western China which is highly consistent with the spatial distribution of population density and economic development.And there is significant spatial clustering in several major grain producing areas.This paper then takes the Super-SBM and Malmquist TFP Index to study the agricultural production efficiency of 31 provinces of China from 2000 to 2015.Author finds that the technical efficiency of agricultural production of China has improved in past 15 years,which is due to the substantial increase in the pure technical efficiency.And the scale efficiency has decreased slightly,who has changed from the constant or increasing return to scale to the decreasing.Through the slack analysis,it is found that the pure technical inefficient provinces are excessive in land,machinery,irrigation and electricity inputs.The total factor productivity(TFP)of agriculture in China has improved greatly from 2000 to 2015,some of which are due to the improvement of technical efficiency,and some to the technological progress.Through the convergence analysis,author finds that the TFP of agriculture of different provinces tend to convergence,and meanwhile they are gradually moving towards their own equilibrium state.In the end of this paper author analyzes the factors probably affecting the agricultural production efficiency by Tobit regression model and finds that the positive factors are the educational level of labor,the regional GDP and the support from finance,and the negative factors are the Engel Index,the per capita sown area and the proportion of area affected by natural disaster.