Modeling the Pattern of Structural Change in U.S. Meat Demand
用四肉类几乎理想需求系统检验美国肉类需求的结构变化，发现结构变化偏向鸡肉和鱼肉、不利于牛肉，对猪肉中性，且不影响弹性估计。
Abstract The hypothesis of structural change in U.S. meat demand is tested in a four‐meat almost ideal demand system with parameters following a gradual switching regression model. The results support the notion that structural change partly explains the observed U.S. meat consumption patterns. Structural change is biased against beef, neutral for pork, in favor of chicken and fish, and it does not affect estimated elasticities. The estimated path of structural change implies a rapid transition to a new regime in the mid‐1970s, although a smooth path cannot be ruled out.