Equity in Swedish health care reconsidered: new results based on the finite mixture model
用有限混合模型重新分析瑞典医疗利用的公平性，发现以往支持不公平假说的结论对模型设定和标准误估计方法敏感，为收入相关医疗利用差异提供了新视角。
This paper reconsiders the equity issue in Swedish health care utilization previously analysed by Gerdtham (Health Econ 1997; 6: 303-319) within the framework of the standard two-part model. Departing from the user/non-user distinction, we use the more flexible framework of the finite mixture model that distinguishes between frequent/infrequent users. Our results indicate that the support for the inequity hypothesis reported by Gerdtham is sensitive to model specification and the way standard errors of coefficients are estimated. The new framework offers an alternative perspective on the magnitude of the income-related difference in health care utilization.