Gutierrez, Luciano - EconWPA - 2005
In the paper we extend Gregory and Hansen’s (1996)ADF, Za, Zt cointegration tests to panel data, using the method … proposed in Maddala and Wu (1999). We test the null hypothesis of no cointegration for all the units in the panel against the … alternative hypothesis of cointegration, while allowing for a one-time regime shift of unknown timing for at least some …