Assessing household health expenditure with Box–Cox censoring models
将Box-Cox变换与位置参数结合，推广了Tobit、Heckman选择和双障碍模型，以处理零支出和正支出偏态分布问题，并用瑞士家庭健康支出数据进行了实证分析。
In order to assess the combined presence of zero expenditures and a heavily skewed distribution of positive expenditures, the Box-Cox transformation with location parameter is used to define a set of models generalising the standard Tobit, Heckman selection and double-hurdle models. Extended flexibility with respect to previous specifications is introduced, notably regarding negative transformation parameters, which may prove necessary for medical expenditures, and corner-solution outcomes. An illustration is provided by the analysis of household health expenditure in Switzerland.