Risk and marketing behavior: pricing fed cattle on a grid

A seven‐year comparative study of grid pricing versus average pricing of slaughter cattle was conducted to evaluate carcass quality market signals. The primary objectives of the study are to determine: (1) if market signals sent through the grid pricing system indicate an improvement in the grid incentive mechanism over time, (2) how changes in the grid premium and discount structure associated with carcass quality affect the market risk premium, and (3) if changes in price risk (variance) affect producer marketing decisions. An Exponential‐Autoregressive‐Conditional‐Heteroskedasticity‐in‐Mean (EARCH‐in‐Mean) modeling procedure was adopted. Empirical results suggest that the grid premium and discount structure is slowly adjusting carcass quality market signals to encourage marketing on a grid and discourage marketing by the pen. The inclusion of the conditional variance in the empirical model indicates that variance associated with the carcass quality risk premium adds financial risk associated with the adoption of grid pricing.     

《经过斯洛特》表现的历史书写:从质疑到建构

迈克尔.翁达杰在《经过斯洛特》里通过对于完整叙述原始事件的可能性、对构建历史的完整概念和追溯历史连续发展的传统叙事手段等进行质疑,瓦解以强势权利话语为特征的传统历史武断的一统性,表达了他对历史书写的态度。     

供港冰鲜猪肉屠宰检验及处理

供港冰鲜猪肉除加强对活猪注册场的监管和禁限用兽药、非食用添加物的监测外,还必须加强屠宰检验检疫,防止疫病、寄生虫病猪肉流入香港市场,确保供港冰鲜猪肉的质量卫生安全。