Abstract
Recent panel unit root tests for PPP usually ignore seasonality, which may generate unknown effects on cross-sectional dependencies. Chang [Chang Y., 2002. Nonlinear IV unit root tests in panels with cross-sectional dependency. Journal of Econometrics 110, 261-292] proposed a nonlinear IV estimator removing cross-sectional dependencies asymptotically. We extend it to test seasonal panel unit root in the form of Hylleberg et al. [Hylleberg, S., Engle, R.F., Granger, C.W.J., Yoo, B.S., 1990. Seasonal integration and cointegration. Journal of Econometrics 44, 215-238]. The empirical robustness of the statistic to seasonality is confirmed.
| Original language | English |
|---|---|
| Pages (from-to) | 314-316 |
| Number of pages | 3 |
| Journal | Economics Letters |
| Volume | 99 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2008 May |
| Externally published | Yes |
Keywords
- Nonlinear IV
- PPP
- Seasonal unit root
ASJC Scopus subject areas
- Finance
- Economics and Econometrics