英文文献：Nutrition and Health: Structural Analysis of Egg Consumption in Canada-营养与健康:加拿大蛋类消费的结构分析
英文文献作者：Hailu, Getu,Goddard, Ellen W.
英文文献摘要：
Nonparametric and parametric demand analyses are used to investigate the structural changes in egg consumption in Canada over the period 1978:1-2001:4. The nonparametric empirical results show that Canadian egg demand has undergone structural change, consistent with news coverage of egg-cholesterol nutrition issues, introduction of new products into the market, popularization of Atkin's diet and other variables. The results from the parametric method revealed that the impacts of advertising and media information index are significant and time varying. Furthermore, the media information index is found to have a significant effect on the size of advertising elasticities. With a larger number of positive media articles, the bigger the impact of shell egg advertising. The results of this study provide important information for policy makers and producers, processors in the egg industry.

采用非参数和参数需求分析研究了1978 -2001年4年间加拿大蛋类消费的结构变化。非参数实证结果表明，加拿大鸡蛋需求发生了结构性变化，与新闻报道的鸡蛋胆固醇营养问题、新产品进入市场、Atkin's diet的普及等变量相一致。参数化方法的结果表明，广告和媒体信息指数的影响是显著的、时变的。此外，媒体信息指数对广告弹性大小有显著影响。媒体正面文章越多，贝壳蛋广告的影响就越大。这项研究的结果为政策制定者、鸡蛋生产商和加工商提供了重要的信息。