Born in Amsterdam, Haccoû received his MA in Economics at the University of Amsterdam in 1926, and his Phd cum laude in Economics in 1940 with the thesis "De termijnhandel in goederen" (The futures exchange in goods) under supervision of Théodore Limperg.
In the late 1950s Haccoû was on the short list for the new Rector of the University of Amsterdam, but this position was granted to the former minister Joris in 't Veld [REF].