Gray D. (2004) Persistent regional unemployment differentials revisited, Reg. Studies 38, 167-176. Based on bivariate and multivariate cointegration, three inferences concerning the nature of the British regional unemployment rates are drawn. First, regional unemployment rates are characterized...

Gray D. (2005) An examination of regional interaction and super-regions in Britain: an error correction model approach, Regional Studies 39 , 619-632. This paper examines spill-over effects among regions. Estimating error correction models of British rates of unemployment and conducting...