Iam a final year undegraduate student doing economics.I've another semester to complete the course and am looking forward to doing my graduate/postgraduate study(economics)in U.K.For this purpose i've shortlisted few universities like UCL,Warwick,Durham,Exeter.I'd like to know about the necessary documents to be submitted while applying.Also, i'd like to know if submission of my GRE score would be helpful,at the time of submission of application that is.