This paper extends the cross sectionally augmented panel unit root test proposed byPesaran (2007) to the case of a multifactor error structure. The basic idea is to exploitinformation regarding the unobserved factors that are shared by other time series in additionto the variable under...

This paper investigates certain issues of economic and ethnic segregation from theperspective of children in the three metropolitan regions of Sweden by using a relative newoperationalization of the neighbourhood concept. Neighbourhoods are clustered bypopulation share of visible immigrants in...