Household Consumption of Cheese: An Inverse Hyperbolic Sine Double‐Hurdle Model with Dependent Errors
通过反双曲正弦变换推广了相依双障碍模型，允许异方差误差，并应用于美国家庭奶酪消费数据，发现同方差正态双障碍模型设定有误，收入弹性小且在不同家庭群体间有差异，食品券领取者消费概率更低但消费金额更高。
Abstract The dependent double‐hurdle model is generalized by an inverse hyperbolic sine transformation of the dependent variable. The resulting specification features a flexible parameterization, accommodates heteroskedastic errors, and nests a range of common limited dependent variable models. Results for U.S. household cheese consumption suggest that the homoskedastic and normal double‐hurdle model is misspecified. Income elasticities are small and vary across household groups. Foodstamp recipients are more responsive to income changes than nonrecipients. Foodstamp recipients are also less likely to consume cheese but, conditional on consumption, spend more than nonrecipients.