共 7 条
[5]
Unit root tests in panel data: asymptotic and finite-sample properties[J] . Andrew Levin,Chien-Fu Lin,Chia-Shang James Chu.Journal of Econometrics . 2002 (1)
[7]
Unit root tests in panel Data asymptotic and finite sample Properties .2 Levin A,and Lin C.F. Department of Economics,University of California at San Diego, Discussion Paper No 92-93 . 1992