英文文献：Dynamics of Price-Cost Margins in the U.S. Meat Industry
英文文献作者：Chidmi, Benaissa,Fadiga, Mohamadou L.
英文文献摘要：
This study analyses the stochastic behavior of price-cost margins (PCMs) in the U.S. meat industry. It, first, develops and estimates a vertical relationship economic model to derive PCMs in the U.S. meat industry (Beef, Pork, and Poultry). Second it analyzes the behavior of PCMs by decomposing them into their seasonal, cyclical, and trend components using the state-space and the Kalman filtering methods. Price-cost margins in the U.S. meat industry are governed by two common trends and two common cycles. The study also found cyclical variability of PCMs is the highest with chicken, secular variability of PCMs is the highest with pork, while seasonal variability of PCMs is the highest with beef.