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.
Pero simula pagkatapos ng Ikalawang Digmaang Pandaigdig, ang paksa focus narrowed sa dami-driven na pananaliksik, na may diin sa abstract financial study dinisenyo upang tularan tradisyonal mathematic at pang-agham disciplines.