Regional Shifts in Pork Production: Implications for Competition and Food Safety
研究美国猪肉生产从中西部向东南部转移的趋势，分析小型中西部农场在加工能力集中条件下的生存可能性，并评估限制沙门氏菌发病率对行业成本和区域比较优势的影响。
Abstract U.S. pork production and processing is consolidating in larger, more economically efficient units, and shifting from the Midwest into the Southeast. A regionalmodelof farm supply and processing demand shows that smaller Midwest operations can survive only if processing capacity remains concentrated in that region. Salmonella incidence is higher in the Southeast and on larger farms. Restricting salmonella incidence in hogs delivered for processing to the minimum feasible level would increase total industry costs by 3%, due to increased production and delivery costs. It would also increase the comparative advantage of farms and processing firms in the Midwest.