Panel unit-root tests with structural breaks

Author:

Chen Pengyu1,Karavias Yiannis1,Tzavalis Elias2

Affiliation:

1. University of Birmingham Birmingham, U.K.

2. Athens University of Economics and Business Athens, Greece

Abstract

In this article, we introduce a new community-contributed command called xtbunitroot, which implements the panel-data unit-root tests developed by Karavias and Tzavalis (2014, Computational Statistics and Data Analysis 76: 391–407). These tests allow for one or two structural breaks in deterministic components of the series and can be seen as panel-data counterparts of the tests by Zivot and Andrews (1992, Journal of Business and Economic Statistics 10: 251–270) and Lumsdaine and Papell (1997, Review of Economics and Statistics 79: 212–218). The dates of the breaks can be known or unknown. The tests allow for intercepts and linear trends, nonnormal errors, and cross-section heteroskedasticity and dependence. They have power against homogeneous and heterogeneous alternatives and can be applied to panels with small or large time-series dimensions.

Publisher

SAGE Publications

Subject

Mathematics (miscellaneous)

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