Cost Changes and Technical Efficiency of Grain Production in China against a Background of Rising Factor Prices

Based on panel data for the inputs and outputs of three major staple grains (rice, wheat corn) in China from 2000 to 2020, we calculated cost efficiency using stochastic frontier function model examined effects changes explore sources increases grain production. On this basis, impact input factor structures technical food was further analyzed under conditions price increases. We found that labor prices production costs showed same trends changes. Compared 2000, 2020 increased 7.33-fold values were all close 0.9 (0.8689, 0.8912 0.8451). An decomposition adjustment effect main increases, but technological progress improvement could effectively reduce (the largest average value rice at 0.4569). In comparison, reduction more obvious. By analyzing influence efficiency, it different heterogeneous among grains. This paper puts forward following policy recommendations: first, improve level mechanization by developing social services dependence labor; secondly, promote construction agricultural informatization, such as accelerating research development intelligent machinery promoting transformation traditional agriculture agriculture; finally, marketization land element through trusteeship transfer price.