A double‐hurdle model of cigarette consumption
利用英国综合住户调查数据，论证了双重障碍模型在分析个人香烟消费中的重要性，强调参与和消费量应作为独立决策处理，并展示了如何利用样本分离信息分解模型。
Abstract This paper shows the importance of the double‐hurdle approach for modelling individuals' cigarette consumption, using data from the UK General Household Survey, and argues that participation and consumption should be treated as separate individual choices. The likelihood function for the full double‐hurdle is derived, and it is shown how restrictions on the stochastic specification of the model and auxillary information, which identifies ex‐smokers, allow it to be decomposed. The empirical results highlight the value of the sample separation information and the need to model starting and quitting as separate decisions.