RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2006, Vol. 15 >> Issue (1): 71-75.

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INPUT AND OUTPUT FACTOR ANALYSIS OF GRAIN PRODUCTION ——AN EMPIRICAL EVIDENCE BASED ON JIANGSU PROVINCE

HU Bing-chuan, WU Qiang, ZHOU Shu-dong   

  • Received:2005-01-21 Revised:2005-03-29 Online:2006-01-20
  • Contact: HU Bing-chuan

Abstract: This paper establishes an econometrics model based on the panel data of 13 cities in Jiangsu province, and analyzes the contributive factors of input and output from the model. The result indicates that the cultivated land plays the most important role in the grain production in Jiangsu province, with the expansion of cities and decrease of cultivated land, and the trend of the grain production in Jiangsu is continuously downwards. On the other hand, with the improvement of technology efficiency and labor productivity, the grain production grows under the decrease of labor, then the relation can not be interpreted as the negative elasticity of labor. At last ,in the aspect of farm stock, the empirical result also shows that fertilizer and power of engine play an important role in grain production.

Key words: grain, influencing factors, input and output

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