Energy Economics · 2023 · 153 citations · 81 references
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Testing for unit roots in heterogeneous panels
Kyung So Im, M. Hashem Pesaran, Yongcheol Shin · Journal of Econometrics · 2003 · 14.7K citations
Testing for Error Correction in Panel Data*
Joakim Westerlund · Oxford Bulletin of Economics and Statistics · 2007 · 5.5K citations