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A Simple Panel Stationarity Test in the Presence of Cross-Sectional Dependence

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  • Kaddour Hadri
  • Eiji Kurozumi

Abstract

This paper develops a simple test for the null hypothesis of stationarity in heterogeneous panel data with cross-sectional dependence in the form of a common factor in the disturbance. We do not estimate the common factor but mop-up its effect by employing the same method as the one proposed in Pesaran (2007) in the unit root testing context. Our test is basically the same as the KPSS test but the regression is augmented by cross-sectional average of the observations. We also develop a Lagrange multiplier (LM) test allowing for cross-sectional dependence and, under restrictive assumptions, compare our augmented KPSS test with the extended LM test under the null of stationarity, under the local alternative and under the fixed alternative, and discuss the differences between these two tests. We also extend our test to the more realistic case where the shocks are serially correlated. We use Monte Carlo simulations to examine the finite sample property of the augmented KPSS test.

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Bibliographic Info

Paper provided by Institute of Economic Research, Hitotsubashi University in its series Global COE Hi-Stat Discussion Paper Series with number gd08-016.

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Date of creation: Oct 2008
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Handle: RePEc:hst:ghsdps:gd08-016

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Keywords: Panel data; stationarity; KPSS test; cross-sectional dependence; LM test; locally best test;

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  1. Yongcheol Shin & Andy Snell, 2004. "Mean Group Tests for Stationarity in Heterogenous Panels," ESE Discussion Papers 107, Edinburgh School of Economics, University of Edinburgh.
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Citations

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Cited by:
  1. Christidou, Maria & Panagiotidis, Theodore, 2010. "Purchasing Power Parity and the European single currency: Some new evidence," Economic Modelling, Elsevier, vol. 27(5), pages 1116-1123, September.
  2. Maria Christidou & Theodore Panagiotidis & Abhijit Sharma, 2013. "On the stationarity of per capita carbon dioxide emissions over a century," Koç University-TUSIAD Economic Research Forum Working Papers 1317, Koc University-TUSIAD Economic Research Forum.
  3. Vishal Jaunky, 2013. "Democracy and economic growth in Sub-Saharan Africa: a panel data approach," Empirical Economics, Springer, vol. 45(2), pages 987-1008, October.
  4. Vishal Jaunky, 2013. "The Wealth-Health Nexus: New Global Evidence," Atlantic Economic Journal, International Atlantic Economic Society, vol. 41(2), pages 115-122, June.
  5. Evangelia Papapetrou & Dimitrios Bakas, 2012. "Unemployment in Greece: evidence from Greek regions," Working Papers 146, Bank of Greece.
  6. Venturini, Francesco, 2012. "Looking into the black box of Schumpeterian growth theories: An empirical assessment of R&D races," European Economic Review, Elsevier, vol. 56(8), pages 1530-1545.
  7. Eiji Kurozumi & Daisuke Yamazaki & Kaddour Hadri, 2012. "Covariate Unit Root Test for Cross-Sectionally Dependent Panel Data," Global COE Hi-Stat Discussion Paper Series gd12-256, Institute of Economic Research, Hitotsubashi University.
  8. Declan French, 2012. "Causation between health and income: a need to panic," Empirical Economics, Springer, vol. 42(2), pages 583-601, April.

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