Cholesterol information and egg consumption in the US: A nonnormal and heteroscedastic double-hurdle model
运用非正态异方差双障碍模型，基于1989-91年美国个人食物摄入调查数据，发现胆固醇信息显著抑制了鸡蛋的消费决策和消费量，城市化、地区、年龄、性别、种族、民族和教育等人口变量也有显著影响。
Previous studies suggest that the diffusion of cholesterol information is a major reason for the continuing decline in US per capita egg consumption. This study examines the effects of cholesterol information and demographic variables on egg consumption by applying a nonnormal and heteroscedastic double-hurdle model and using data from the 1989–91 Continuing Survey of Food Intakes by Individuals (CSFII). Results show that cholesterol information is a deterrent in decisions about whether to consume eggs and how much to consume. The significant demographic variables include urbanisation, region, age, sex, race, ethnicity, and education.