摘要：The study applies the Haugh procedure for establishing Granger causal orderings among prices for whole turkeys and turkey parts Breast prices and a yield - weighted index of parts prices led tom prices by 1 day The reduction in uncertainty about tom prices in one period gained from knowledge of breast prices in the prior periods if of little economic significance Results for canner prices relative to parts prices are similar
关键词：Causality;Leads and lags;Dynamic regression;Pricing;Price reporting
