Willem Floor Dr Willem Floor studied development economics, non-western sociology, as well as Persian, Arabic, and Islamology from 1963-1967 at the University of Utrecht (the Netherlands). He received his doctoral degree from the University of Leiden in 1971. Sine 1983, Dr Floor has been employed by the World Bank as an energy specialist. Throughout this time, he has published extensively on the socio-economic history of Iran. Read More Read Less