Notes, Comments and Preliminary results May 03 2009 Arouri Mohamed el hédi and Fouquau Julien   On the short-term influence of oil price changes on stock markets in gcc countries: linear and nonlinear analyses   Abstract  Contact Information  Citation  Full Text  -  Note   Nov 02 2008 Julien Fouquau   Threshold effects in Okun's Law: a panel data analysis   Abstract  Contact Information  Citation  Full Text  -  Note