Lucas additionally made a powerful investigate of Keynesian exact models. He contended that determining models in light of exact connections would continue to create similar expectations even as the hidden model producing the information changed. He pushed models in view of crucial nancial hypothesis that would, on a fundamental level, be basically precise as economies changed. Following Lucas' evaluate, new traditional market analysts, drove by Edward C. Prescott and Firm E, Kydland, made genuine business cycle [RB C} models of the full scale economy.[13]