This i s to c e r t i f y t h a t Mrs !/i. J. ' t HQOFT-flfSLVAAIBi mtm
one of my very able students i n Sooncanetrtós, After having
completed her M.A, t r a i n i n g at the Rotterdam School of P,conoraic8
she worked on investinent problems a t the office of an investment
t r u s t , whereas at present she i s teaching a t the u n i v e r s i t y of
Amsterdam aaBiiatinf-; the well-known Dutch econojuist F. de V r i e s ,
Actually she has tko f u l l r e s p o n s i o l l i t y of h i s graduate courses
and exarriinations, lii-s ' t Hooft alv/a^s had a keen I n t e r e s t i n
econ<»nic prohloms aiid very good uxideratanding for methods of
research, I wannly reconiaend her for next year seminar.
Ppofeesor of Mathematical Booiiomics^
Rotterdam School of Bconomlcs,