Abstract: By introducing annuity insurance into the family expenditure model, we studied individual demands for annuity insurance on the micro level.
[摘要]本文将年金保险引入家庭支出决策模型中，从微观层面上考察了个体对年金保险的需求。
An electricity demand function is put forward according to the linear expenditure model. This paper also calculates electricity income elasticity and price elasticity.
根据扩展线性支出系统理论建立电力消费的需求函数，并对居民电力消费需求的收入弹性、价格弹性进行定量分析。
Applying reliable theories, the decision-making model of optimum maintenance period for fully mechanized face equipment has been developed based on the rule of minimum running expenditure.
应用可靠性理论，得出了基于运行费用最小原则的综机设备最佳维修周期的决策模型。
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