期刊名称：Advance Journal of Food Science and Technology
印刷版ISSN：2042-4868
电子版ISSN：2042-4876
出版年度：2015
卷号：8
期号：8
页码：598-602
出版社：MAXWELL Science Publication
摘要：Hidden danger of food safety is always one of the important factors causing food price fluctuation. Once some kind of food occurs large scale of safety incident, its price is bound to be impacted. To analyze the view above by example, this study analyzed impact effect of clenbuterol event on the market price of pork using method of relative price with a substitute. The results demonstrated that, relative price of pork and beef was in a co-integration relationship before clenbuterol event occurred; the first structural breakpoint appeared half year after CCTV reported clenbuterol event and the second one occurred in April, 2012, indicating the impact effect of clenbuterol event to market price lasted for half year. Evaluation of price impact effect by error correction model indicated that, the price of pork lowered 30.3% averagely in that period, while the price of its substitute beef tended to be higher, with an amplification of 8.2%.
