arthur andersen model validation request vince goal validate enron global market book administrators accurately using spread option model developed research group determine would like provide inputs particular deal provided global markets book administrator recalculate deal value compare results values calculated global markets two koch deals chosen due substantial p l effect attached deal data two forms 1 spread option model kara boudreau book administrator egm provided 2 excel spreadsheet isolates 2 deals anything could provide please hesitate call x 30968 thank much help gillian 1 2