Abstract
We study the asymptotic probability that a random walk with heavytailed increments crosses a high boundary on a random time interval. We use new techniques to extend results of Asmussen [Ann. Appl. Probab. 8 (1998) 354-374] to completely general stopping times, uniformity of convergence over all stopping times and a wide class of nonlinear boundaries. We also give some examples and counterexamples. © Institute of Mathematical Statistics, 2005.
| Original language | English |
|---|---|
| Pages (from-to) | 1936-1957 |
| Number of pages | 22 |
| Journal | Annals of Applied Probability |
| Volume | 15 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Aug 2005 |
Keywords
- Boundary
- Random walk
- Ruin probability
- Subexponential distributions