英文文献：China’s small-scale hog production and implications for trade: Evidence from a farmer survey-中国小规模生猪生产及其对贸易的影响:来自农民调查的证据
英文文献作者：Wang, Qingbin,Zhang, Guangxuan
英文文献摘要：
Using primary data of 3,327 Chinese farmers and their villages collected through a survey in 2010, this study identifies the factors that affect farmers’ decision to raise hogs and the factors that determine the hog farmers’ production scale and discusses the likely future of small-scale hog production and its potential impacts on China’s pork market and trade. Estimation results of a Heckman model suggest that labor availability, the opportunity of earning income from nonfarm jobs, and the existence of large-scale hog farms and processing facilities in the local area are among the major factors of the participation and scale decisions. As China’s demand for pork has been increasing at a relatively stable rate, China’s pork imports from the U.S. and other nations are increasingly determined by its domestic pork supply, especially the production of small-scale hog farmers due to its sensitivity to price, disease, subsidy, and other factors.

使用主数据收集的3327中国农民和他们的村庄通过2010年的一项调查,本研究确定的因素影响农民的决定提高猪和因素决定养猪的农民的生产规模,并讨论可能的未来小规模生猪生产及其对中国猪肉市场的潜在影响和贸易。Heckman模型的估计结果表明，劳动力可用性、从非农业工作中获得收入的机会、以及当地大规模养猪场和加工设施的存在是参与和规模决策的主要因素。由于中国对猪肉的需求一直在以相对稳定的速度增长，中国从美国和其他国家进口的猪肉越来越多地取决于国内猪肉供应，尤其是对价格、疾病、补贴等因素敏感的小规模养猪户的产量。