1. M. Hashem Pesaran, 2006. "Estimation and Inference in Large Heterogeneous Panels with a Multifactor Error Structure," Econometrica, Econometric Society, vol. 74(4), pages 967-1012, 07. [Downloadable!] (restricted)
   Other versions:
   • M. Hashem Pesaran, 2004. "Estimation and Inference in Large Heterogeneous Panels with a Multifactor Error Structure," CESifo Working Paper Series CESifo Working Paper No. , CESifo Group Munich. [Downloadable!]
2. Luintel, Kul B, 2001. "Heterogeneous Panel Unit Root Tests and Purchasing Power Parity," Manchester School, University of Manchester, vol. 69(0), pages 42-56, Supplemen. [Downloadable!] (restricted)
3. Anindya Banerjee & Massimiliano Marcellino & Chiara Osbat, 2004. "Some cautions on the use of panel methods for integrated series of macroeconomic data," Econometrics Journal, Royal Economic Society, vol. 7(2), pages 322-340, December. [Downloadable!] (restricted)
   Other versions:
   • Anindya Banerjee & Massimiliano Marcellino & Chiara Osbat, . "Some Cautions on the Use of Panel Methods for Integrated Series of Macro-Economic Data," Working Papers 170, IGIER (Innocenzo Gasparini Institute for Economic Research), Bocconi University. [Downloadable!]
   • Banerjee, A. & Marcellino, M. & Osbat, C., 2000. "Some Cautions on the Use of Panel Methods for Integrated Series of Macro-economic Data," Economics Working Papers eco2000/20, European University Institute.
4. Choi, In, 2001. "Unit root tests for panel data," Journal of International Money and Finance, Elsevier, vol. 20(2), pages 249-272, April. [Downloadable!] (restricted)
5. Alexander, Donald L & Flynn, Joseph E & Linkins, Linda A, 1994. "Estimates of the Demand for Ethical Pharmaceutical Drugs across Countries and Time," Applied Economics, Taylor and Francis Journals, vol. 26(8), pages 821-26, August.
6. Pierre-Yves Crémieux & Marie-Claude Meilleur & Pierre Ouellette & Patrick Petit & Martin Zelder & Ken Potvin, 2005. "Public and private pharmaceutical spending as determinants of health outcomes in Canada," Health Economics, John Wiley & Sons, Ltd., vol. 14(2), pages 107-116. [Downloadable!]
7. Im, Kyung So & Pesaran, M. Hashem & Shin, Yongcheol, 2003. "Testing for unit roots in heterogeneous panels," Journal of Econometrics, Elsevier, vol. 115(1), pages 53-74, July. [Downloadable!] (restricted)
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   • Pasaran, M.H. & Im, K.S. & Shin, Y., 1995. "Testing for Unit Roots in Heterogeneous Panels," Cambridge Working Papers in Economics 9526, Faculty of Economics, University of Cambridge.
8. Pesaran, M.H., 2004. "‘General Diagnostic Tests for Cross Section Dependence in Panels’," Cambridge Working Papers in Economics 0435, Faculty of Economics, University of Cambridge. [Downloadable!]
   Other versions:
   • M. Hashem Pesaran, 2004. "General Diagnostic Tests for Cross Section Dependence in Panels," CESifo Working Paper Series CESifo Working Paper No. , CESifo Group Munich. [Downloadable!]
   • Pesaran, M. Hashem, 2004. "General Diagnostic Tests for Cross Section Dependence in Panels," IZA Discussion Papers 1240, Institute for the Study of Labor (IZA). [Downloadable!]
9. Clemente, Jesus & Marcuello, Carmen & Montanes, Antonio & Pueyo, Fernando, 2004. "On the international stability of health care expenditure functions: are government and private functions similar?," Journal of Health Economics, Elsevier, vol. 23(3), pages 589-613, May. [Downloadable!] (restricted)
10. Karatzas, George, 2000. "On the Determination of the US Aggregate Health Care Expenditure," Applied Economics, Taylor and Francis Journals, vol. 32(9), pages 1085-99, July. [Downloadable!] (restricted)
11. Breusch, T S & Pagan, A R, 1980. "The Lagrange Multiplier Test and Its Applications to Model Specification in Econometrics," Review of Economic Studies, Blackwell Publishing, vol. 47(1), pages 239-53, January. [Downloadable!] (restricted)
12. Pedroni, Peter, 1999. " Critical Values for Cointegration Tests in Heterogeneous Panels with Multiple Regressors," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 61(0), pages 653-70, Special I. [Downloadable!] (restricted)
13. Heino Bohn Nielsen, 2004. "Cointegration analysis in the presence of outliers," Econometrics Journal, Royal Economic Society, vol. 7(1), pages 249-271, 06. [Downloadable!] (restricted)
14. Serena Ng & Pierre Perron, 2001. "LAG Length Selection and the Construction of Unit Root Tests with Good Size and Power," Econometrica, Econometric Society, vol. 69(6), pages 1519-1554, November. [Downloadable!] (restricted)
    Other versions:
    • Serena Ng & Pierre Perron, 1997. "Lag Length Selection and the Construction of Unit Root Tests with Good Size and Power," Boston College Working Papers in Economics 369, Boston College Department of Economics, revised 01 Sep 2000. [Downloadable!]
15. Huttin, Christine, 2000. "A Cluster Analysis on Income Elasticity Variations and US Pharmaceutical Expenditures," Applied Economics, Taylor and Francis Journals, vol. 32(10), pages 1241-47, August. [Downloadable!] (restricted)
16. Levin, Andrew & Lin, Chien-Fu & James Chu, Chia-Shang, 2002. "Unit root tests in panel data: asymptotic and finite-sample properties," Journal of Econometrics, Elsevier, vol. 108(1), pages 1-24, May. [Downloadable!] (restricted)
    Other versions:
    • Andrew Levin & Chien-Fu Lin, 1992. "Unit Root Tests in Panel Data: Asymptotic and Finite-Sample Properties," University of California at San Diego, Economics Working Paper Series 92-23, Department of Economics, UC San Diego. [Downloadable!]
17. Anindya Banerjee & Josep Lluís, 2006. "Cointegration in panel data with breaks and cross-section dependence," Working Paper Series 591, European Central Bank. [Downloadable!]
18. Gregory, Allan W. & Hansen, Bruce E., 1996. "Residual-based tests for cointegration in models with regime shifts," Journal of Econometrics, Elsevier, vol. 70(1), pages 99-126, January. [Downloadable!] (restricted)
    Other versions:
    • Allan W. Gregory & Bruce E. Hansen, 1992. "Residual-Based Tests for Cointegration in Models with Regime Shifts," Working Papers 862, Queen's University, Department of Economics.
    • Gregory, A.W. & Hansen, B.E., 1992. "Residual-Based Tests for Cointegration in Models with Regime Shifts," RCER Working Papers 335, University of Rochester - Center for Economic Research (RCER).
19. Maddala, G S & Wu, Shaowen, 1999. " A Comparative Study of Unit Root Tests with Panel Data and a New Simple Test," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 61(0), pages 631-52, Special I. [Downloadable!] (restricted)
20. Henriksson, Freddie & Hjortsberg, Catharina & Rehnberg, Clas, 1999. "Pharmaceutical expenditure in Sweden," Health Policy, Elsevier, vol. 47(2), pages 125-144, May. [Downloadable!] (restricted)
21. Anindya Banerjee & Josep Lluís Carrion-i-Silvestre, 2006. "Cointegration in Panel Data with Breaks and Cross-Section Dependence," Economics Working Papers ECO2006/5, European University Institute. [Downloadable!]

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1. Lambrelli, D & O’Donnell, O, 2009. "Why Does the Utilization of Pharmaceuticals Vary So Much Across Europe? Evidence from Micro Data on Older Europeans," Health, Econometrics and Data Group (HEDG) Working Papers 09/06, HEDG, c/o Department of Economics, University of York. [Downloadable!]