An analysis on technical efficiency of paddy production in China

Abstract

Paddy is related with China's food security as the main food crop. This paper analyzes the efficiency of paddy production in China using BCC model of DEA method. The results show that the production efficiency of paddy is low and unstable from 1990 to 2008. The inputs of paddy production are unreasonable in many years. The pure technical efficiency is smooth when the scale efficiency isn't stable, and the scale efficiency is smooth when the pure technical efficiency is unstable. The tendencies of pure technical efficiency and scale efficiency are opposite. Overall, the pure technical efficiency has great impact on paddy production; the effect of scale efficiency is weak.