This was some kind of national game organized by SMO (Stichting Maatschappij en Onderneming) to teach high school children about entrepreneurship. The central organizatin would send data to load into the program and the player has to make decisions on what to do to make the best profit in a chocolate factory.
See also https://www.delpher.nl/nl/kranten/view?identifier=KBNRC01:000030042:mpeg21:p025&coll=ddd for example.