But starting after World War II, the subject focus narrowed to quantitative-driven research, with an emphasis on abstract financial study designed to emulate traditional mathematic and scientific disciplines.
Lakini kuanzia baada ya Vita Kuu ya II, somo lengo dhiki kwa kiidadi inayotokana utafiti, kwa msisitizo juu ya utafiti abstract fedha iliyoundwa kuiga mathematic jadi na taaluma ya kisayansi.