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00925njm 22002777a 4500 dc Andrés Sánchez, Jorge de author González-Vila Puchades, Laura author 2016-12-20T12:42:53Z 2020-02-01T06:10:15Z 2017-01 2016-12-20T12:42:58Z This paper extends the framework for the valuation of life insurance policies and annuities by Andrés- Sánchez and González-Vila (2012, 2014) in two ways. First we allow various uncertain magnitudes to be estimated by means of fuzzy numbers. This applies not only to interest rates but also to the amounts to be paid out by the insurance company. Second, the use of symmetrical triangular fuzzy numbers allows us to obtain expressions for the pricing of life contingencies and their variability that are closely linked to standard financial and actuarial mathematics. Moreover, they are relatively straightforward to compute and understand from a standard actuarial point of view. Matemàtica actuarial Conjunts borrosos Risc (Assegurances) Assegurances de vida Actuarial mathematics Fuzzy sets Risk (Insurance) Life insurance The valuation of life contingencies: A symmetrical triangular fuzzy approximation