1970 Master’s thesis about social, political and mass psychology. Mimeographed trilogy about the evolution of the recent local anarchist ‘Provo’ movement, a key early forerunner of the international 1968-1969 youth revolt. At one point it even won a seat on the City Council, and later partly re-emerged in the guise of the related ‘Kabouter’ (gnome) movement.

            First theoretical part I, ‘scriptie’, about the existing (mostly Anglo-American) literature on social movements and riots in general (120 pages).

            Second practical part II, ‘stage-verslag’ (internship), about the constitution of the earliest embryonic ‘Provo archive’ at the Institute of Mass Psychology.  (It was later expanded by the acquisition of key members’ personal files, and integrated into the ‘special collections’ of the university library). It included a complete chronological inventory on (then modern) punch cards, of the Provo-related flyers and magazines that had been distributed (100 pages).

            Third empirical part III, ‘werkstuk’, with statistical-empirical tests of hundreds of detailed hypotheses, on the causes and consequences of weekly Provo-related street events and riots. Most derived from a content analysis of reports in a major Amsterdam newspaper, Het Parool, and some others (80 pages).

            (Between mid 1965 and mid 1967, there were some hundred Saturday evenings, for which ‘happenings’ were convened around the statuette of the ‘Lieverdje’ in central Amsterdam – a unique series of events. Sometimes they remained friendly celebrations, sometimes they turned into full scale riots. The central question was of course: Why?).