Pellerey, Franco; Shaked, Moshe - In: Statistics & Probability Letters 33 (1997) 4, pp. 389-393
The purpose of this note is to show a new characterization of the IFR and DFR aging notions by means of the dispersive order. Our result extends results of Mailhot (1987) and of Belzunce, Candel and Ruiz (1995). Our method of proof can also be extended to handle comparisons of "past lives", that...
