| Literatures about agricultural production efficiency are reviewed. Concept of DEA Method, as well as the definition methods of effective DEA and scale efficiency increase is introduced. According to the relevant statistical data in the years 1997-2007 in Chongqing Municipality, efficiency of agricultural economy is calculated from the year 1997 to 2007 by DEA method and the scale efficiency is also analyzed by taking the total output of agriculture, forestry, animal husbandry and fishery industry as the output index. And the input index includes total workforce in agriculture, forestry, animal husbandry and fishery, the total sown area of crops, the total power of agricultural machinery, chemical fertilizer application, the draft animal, and the effective... |
