| Article ID: | iaor201112767 |
| Volume: | 58 |
| Issue: | 5 |
| Start Page Number: | 411 |
| End Page Number: | 418 |
| Publication Date: | Aug 2011 |
| Journal: | Naval Research Logistics (NRL) |
| Authors: | Pellerey Franco, Di Crescenzo Antonio |
| Keywords: | markov processes, simulation, stochastic processes, maintenance, repair & replacement |
We discuss suitable conditions such that the lifetime of a series or of a parallel system formed by two components having nonindependent lifetimes may be stochastically improved by replacing the lifetimes of each of the components by an independent mixture of the individual components' lifetimes. We also characterize the classes of bivariate distributions where this phenomenon arises through a new weak dependence notion.