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Estimation for IBNR Reserve Based on Nonlinear Regression Models

Abstract

本文主要研究非线性回归思想在预测已发生未报案未决赔款准备金(IncurredButNotReportedReserve,IBNR)中的应用。首先通过两家保险公司的历史数据的三维图分析,确定选择使用指数模型的思想。然后通过研究每组数据方差和均值的关系,为了消除随机干扰项方差的非齐次性,分别提出了对数线性模型和加权双指数模型两个模型,主要揭示单位增量已报案索赔与进展单元之间的关系。由于在增量已报案索赔的数据列表中,每一个事故发生单元的IBNR都是一些缺失值的总和,因此在某一个评估时点上,总的IBNR就可以表示为所有预测的增量已报案索赔的加总。 首先,文章介绍了保险公司,特别是非寿险公司的经营性质...The paper mainly studies the application of Nonlinear regression models in predicting the Incurred But Not Reported Reserve(IBNR). Firstly, by analyzing the 3D Scatterplot of two historical data sets which will be used in this paper, we choose to adopt exponential models for our research. Then, we studies the relationship of variances and averages by groups. In order to exterminate the heterosceda...学位:经济学硕士院系专业:经济学院_统计学学号:1542010115192

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