Hog Production in China:Technological Bias and Factor Demand  

作　　者：MA Heng-yun HU Qing-lin LI Wen Allan Rae GUO Shan-min TANG Hua-cang REN Xiao-jing 

机构地区：[1]College of Economics and Management, Henan Agricultural University, Zhengzhou 450002, P.R.China [2]College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, P.R.China [3]College of Agronomy, Henan Agricultural University, Zhengzhou 450002, P.R.China [4]Center for Applied Economics and Policy Studies, Massey University, Palmerston North 4442, New Zealand

出　　处：《Agricultural Sciences in China》2011年第3期468-479,共12页中国农业科学（英文版）

基　　金：support from the National Natural Science Foundation of China (70773037);the Foundation for Research, Science and Technology grant, New Zealand (IERX0301)

摘　　要：Technological change and factor biases are estimated by employing a translog cost function based on a new adjusted dataset for China’s hog production sector. Technological change is found not to have been neutral and the factor bias to be statistically significant towards feed grain-saving technology. It is also found that the demand for feed grain is elastic with respect to its own price and that strong substitution relationships exist with respect to some other inputs. Thus, along with technological biases, the changes in input price could affect hog farmer input behaviors and therefore change factor shares of hog production cost in China. In other words, demand for feed grain is very elastic, which results in feed grain-saving technological bias. Two major policy implications can be drawn that rising feed grain prices could significantly reduce the feed grain input on hog farms and developing specialized hog farms could provide more employment opportunities for rural labor in China because feed grain and labor are complementary.Technological change and factor biases are estimated by employing a translog cost function based on a new adjusted dataset for China’s hog production sector. Technological change is found not to have been neutral and the factor bias to be statistically significant towards feed grain-saving technology. It is also found that the demand for feed grain is elastic with respect to its own price and that strong substitution relationships exist with respect to some other inputs. Thus, along with technological biases, the changes in input price could affect hog farmer input behaviors and therefore change factor shares of hog production cost in China. In other words, demand for feed grain is very elastic, which results in feed grain-saving technological bias. Two major policy implications can be drawn that rising feed grain prices could significantly reduce the feed grain input on hog farms and developing specialized hog farms could provide more employment opportunities for rural labor in China because feed grain and labor are complementary.

关 键 词：China hog farms technical change factor demand feed grain 

分 类 号：F323.6[经济管理—产业经济] S828[农业科学—畜牧学]