The Analysis On The Technological Efficiency And The Technical Progress Of China's Grain Production

In future, under the pressure of population growth, the arable land reduction and water resources shortage, China's grain security remains a serious problem which cannot be overlooked. In this case, in order to meet the huge number of China's people's living demand and guarantee the development of the national economy, we should deeply research how to improve the efficiency of the limited resources so as to make sure the grain growth, this is becoming a theoretical and practical research topic.This paper estimates a translog stochastic frontier production function in the analysis of more than one thousand counties in three years 2002,2005 and 2007, to attempt to study the technical efficiency and the determinants of technical efficiency of China's grain production, also to study the sources of China's grain production growth. Results indicated that:(1) the technical efficiency of nationwide declines, which is caused by the decrease of high efficiency group. Individual technical efficiency estimates exhibit considerable variation among the regions. But the variations among counties tend to weak convergence;(2) there is a significantly negative relationship between chemical fertilizer per square meters and the technical efficiency;(3) the output elasticity of each input factor can be listed as:grain acreage, total power of farm machinery, chemical fertilizer and labor;(4)the contribution of conventional inputs, about 89.8%, was the main source of the grain production growth, while the contribution of total factor productivity is very low, about 10.2%.The contribution of technical progress is 24.5%, but because of the drop of technical efficiency and negative effects of other factors, the contribution is counteracted about 14.3%.