Thünen-Institut of Market Analysis, 38116 Braunschweig, Germany.
Michigan State University, East Lansing, MI 48824.
Poult Sci. 2024 Oct;103(10):104102. doi: 10.1016/j.psj.2024.104102. Epub 2024 Jul 18.
This study analyzes the effect of avian influenza outbreaks on retail price premiums in the US poultry market. We estimate hedonic price models for eggs, chickens, and turkeys, controlling for quality characteristics, unobserved time, and regional factors. To measure the impact of avian influenza outbreaks we use 2 proxies. The first proxy is a measure of the number of new bird infections at the production level. The second proxy measures online search queries related to the outbreak. The results show that, on average, prices increase across product categories, that is, egg, broiler, and turkey markets, during avian influenza outbreaks. Furthermore, we observe price convergence and reduced dispersion within product categories, which is consistent with the economic theory of asymmetric substitutability between conventional and premium products. Our analysis finds that the HPAI outbreak caused a reduction of the price gap between conventional and premium products.
本研究分析了禽流感爆发对美国家禽市场零售价格溢价的影响。我们针对鸡蛋、鸡肉和火鸡估计了特征价格模型，控制了质量特征、未观测到的时间和地区因素。为了衡量禽流感爆发的影响，我们使用了两个代理变量。第一个代理变量是生产层面新的鸟类感染数量的衡量标准。第二个代理变量衡量与疫情相关的在线搜索查询。结果表明，在禽流感爆发期间，鸡蛋、肉鸡和火鸡市场等产品类别的平均价格都会上涨。此外，我们还观察到产品类别内的价格趋同和分散度降低，这与常规和优质产品之间不对称替代性的经济理论一致。我们的分析发现，高致病性禽流感疫情导致常规产品和优质产品之间的价格差距缩小。
