本文针对随机利率寿险模型，考虑一保单组的平均给付额的性质。
This paper concentrates on life insurance model with stochastic rate of interest, we discuss the properties of average claim amount in a portfolio of policies.
针对同质寿险保单组，分别建立了确定利率与随机利率准备金精算模型。
This paper develops benefit reserve models with deterministic and stochastic interest rate for a homogeneous portfolio of life insurance policies.
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