Life Insurance Theory

This book is different from all other books on Life Insurance by at least one of the following characteristics 1-4. 1. The treatment of life insurances at three different levels: time-capital, present value and price level. We call time-capital any distribution of a capital over time: (*) is the time-capital with amounts Cl, ~, ... , C at moments Tl, T , ..• , T resp. N 2 N For instance, let (x) be a life at instant 0 with future lifetime X. Then the whole oO oO life insurance A is the time-capital (I,X). The whole life annuity ä is the x x time-capital (1,0) + (1,1) + (1,2) + ... + (I,'X), where 'X is the integer part ofX. The present value at 0 of time-capital (*) is the random variable T1 T TN Cl V + ~ v , + ... + CNV . (**) In particular, the present value ofA 00 and ä 00 is x x 0 0 2 A = ~ and ä = 1 + v + v + ... + v'X resp. x x The price (or premium) of a time-capital is the expectation of its present value. In particular, the price ofA 00 and äx 00 is x 2 A = E(~) and ä = E(I + v + v + ... + v'X) resp.

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Insurance is a concept, a technique, and an economic institution. It is a major tool of risk management, and plays an important role in the economic, social, and political life of all countries. Economic growth throughout the world has even expanded the role of insurance. Theory and Practice of Insurance aims to describe the significance of insurance institutions, the reasons they exist and how they function. The author emphasizes fundamental principles in risk and insurance, using an international frame of reference. This volume begins with an introduction to the concept of risk, then proceeds to cover insurance and its relationship to the economy; the principles of risk management and insurance; and the characteristics and performance of insurance companies.