, organized in a panel data structure. In this paper, we investigate the consequences of applying such methodologies when the data … are formed by integrated process of order 1. We find that without a cointegration relation (spurious case) the …. Whereas, for the case when at least one cointegration relation exists, we have a T-consistent estimator for the intervention …

. For these purposes, panel unit root tests are employed to improve power against univariate counterparts. Since cross … section correlation is a distinct feature of the underlying panel data, results are based on various second generation panel …-stationarity of hours worked. In addition, taking these results together, there is no indication of cointegration among the individual …