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Cross-sectional dependency and size distortion in a small-sample homogeneous panel-data unit root test

Author

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  • Jönsson, Kristian

    (Sveriges Riksbank)

Abstract

In this paper, we investigate the effects of cross-sectional disturbance correlation in a homogenous panel-data unit root test. As reported by other authors, the unit root test has incorrect size in the presence of cross-sectional correlation. We suggest that a previously known estimator can be used to reduce the size distortions. We supply response surface estimates for critical values and study the size characteristics of the proposed test. We find that the suggested estimator performs well in small-sample homogenous panel-data unit root tests. The reduction in size distortion comes at small cost of lower power against a stationary alternative.

Suggested Citation

  • Jönsson, Kristian, 2003. "Cross-sectional dependency and size distortion in a small-sample homogeneous panel-data unit root test," Working Papers 2003:10, Lund University, Department of Economics.
    • Handle: RePEc:hhs:lunewp:2003_010
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    2. Demetrescu, Matei & Hanck, Christoph, 2012. "A simple nonstationary-volatility robust panel unit root test," Economics Letters, Elsevier, vol. 117(1), pages 10-13.
    3. Aguirre, Mariana & Ibikunle, Gbenga, 2014. "Determinants of renewable energy growth: A global sample analysis," Energy Policy, Elsevier, vol. 69(C), pages 374-384.
    4. Dossou, Toyo Amègnonna Marcel & Ndomandji Kambaye, Emmanuelle & Asongu, Simplice A. & Alinsato, Alastaire Sèna & Berhe, Mesfin Welderufael & Dossou, Kouessi Pascal, 2023. "Foreign direct investment and renewable energy development in sub-saharan Africa: Does governance quality matter?," Renewable Energy, Elsevier, vol. 219(P1).
    5. Kholodilin Konstantin A. & Menz Jan-Oliver & Siliverstovs Boriss, 2010. "What Drives Housing Prices Down? Evidence from an International Panel," Journal of Economics and Statistics (Jahrbuecher fuer Nationaloekonomie und Statistik), De Gruyter, vol. 230(1), pages 59-76, February.
    6. Helmut Herwartz & Florian Siedenburg, 2013. "To converge or not converge: unit labor cost inflation in the Euro area," Empirical Economics, Springer, vol. 44(2), pages 455-467, April.
    7. Koffie Ben Nassar & Edder Martinez & Anabel Pineda, 2014. "Determinants of Banks' Net Interest Margins in Honduras," IMF Working Papers 2014/163, International Monetary Fund.
    8. Matteo Lanzafame, 2010. "The nature of regional unemployment in Italy," Empirical Economics, Springer, vol. 39(3), pages 877-895, December.
    9. Khan, Muhammad Atif & Gu, Lulu & Khan, Muhammad Asif & Bhatti, Muhammad Ishaq, 2022. "Institutional perspective of financial sector development: A multidimensional assessment," Economic Systems, Elsevier, vol. 46(4).
    10. Fortune Ganda, 2024. "Investigating the Relationship and Impact of Environmental Governance, Green Goods, Non-Green Goods and Eco-Innovation on Material Footprint and Renewable Energy in the BRICS Group," Sustainability, MDPI, vol. 16(4), pages 1-21, February.
    11. Xiujian Chen & Shu Lin & W. Robert Reed, 2005. "Another Look At What To Do With Time-Series Cross-Section Data," Econometrics 0506004, University Library of Munich, Germany.
    12. Sin-Huei Ng & Yunze Yang & Chin-Chong Lee & Chui-Zi Ong, 2023. "Nexus of Financing Constraints and Supply Chain Finance: Evidence from Listed SMEs in China," IJFS, MDPI, vol. 11(3), pages 1-16, August.
    13. Christoph Fischer & Daniel Porath, 2010. "A reappraisal of the evidence on PPP: a systematic investigation into MA roots in panel unit root tests and their implications," Empirical Economics, Springer, vol. 39(3), pages 767-792, December.
    14. repec:wsr:wpaper:y:2009:i:029 is not listed on IDEAS
    15. Evaggelia Siopi & Thomas Poufinas, 2023. "Impact of Internal and External Factors on the Profitability and Financial Strength of Insurance Groups," International Advances in Economic Research, Springer;International Atlantic Economic Society, vol. 29(3), pages 129-149, August.
    16. Behar Alberto & Hodge James, 2008. "The Employment Effects of Mergers in a Declining Industry: The Case of South African Gold Mining," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 8(1), pages 1-20, August.
    17. Fischer, Christoph, 2012. "Price convergence in the EMU? Evidence from micro data," European Economic Review, Elsevier, vol. 56(4), pages 757-776.
    18. Fischer, Christoph, 2007. "An assessment of the trends in international price competitiveness among EMU countries," Discussion Paper Series 1: Economic Studies 2007,08, Deutsche Bundesbank.
    19. Jönsson, Kristian, 2004. "Testing for Stationarity in Panel Data Models when Disturbances are Cross-Sectionally Correlated," Working Papers 2004:17, Lund University, Department of Economics, revised 26 Nov 2004.
    20. Johan Lyhagen & Pär Österholm & Mikael Carlsson, 2007. "Testing for Purchasing Power Parity in Cointegrated Panels," IMF Working Papers 2007/287, International Monetary Fund.
    21. Westerlund, J., 2006. "Some cautions on the use of the LLC panel unit root test," Research Memorandum 055, Maastricht University, Maastricht Research School of Economics of Technology and Organization (METEOR).
    22. Koffie Nassar & Edder Martinez & Anabel Pineda, 2017. "Determinants of Banks’ Net Interest Margins in Honduras," Journal of Banking and Financial Economics, University of Warsaw, Faculty of Management, vol. 1(7), pages 5-27, May.

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    More about this item

    Keywords

    Panel Data; Unit Root; Private Consumption;
    All these keywords.

    JEL classification:

    • C23 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Models with Panel Data; Spatio-temporal Models
    • E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth

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