%0 Journal Article %A Main Yaque, Paloma %T Asymptotic behaviour of reliability functions %D 1988 %@ 0167-7152 %U https://hdl.handle.net/20.500.14352/57545 %X We relate the classes of life distributions based on notions of aging with those that depend on the tail behaviour. This last classification introduces the concepts of outlier-neutral, outlier-prone and outlier- resistant distributions. We prove some results that connect IFR, IFRA, NBU and NBUE definitions with the outlier-resistance concept. Similarly the relationship of DFR, DFRA, NWU and NWUE to outlier-proneness is obtained. %~