Abstract
We derive the power envelope for panel unit root tests where heterogeneous alternatives are modeled via zero-expectation random perturbations. We obtain an asymptotically UMP test and discuss how to proceed when one is agnostic about the expectation of the perturbations.
Original language | English |
---|---|
Pages (from-to) | 1-8 |
Number of pages | 8 |
Journal | Statistics & Probability Letters |
Volume | 108 |
DOIs | |
Publication status | Published - 2016 |
Keywords
- Panel unit root test
- Local Asymptotic Normality
- Limit experiment
- Asymptotic power envelope