To improve efficiency in performance of municipal departments. Making use of taxis / sources of income, standing charges / visits to different forms of theatre, cinema, concerts etc. Sources of information about performances, readership of "Uitkrant": theatre program periodical / contacts with general practitioner / legal liabilities regarding health / cockroaches in residence / experience with crime and vandalism / visits to public swimming pools. Background variables: basic characteristics/ place of birth/ residence/ housing situation/ household characteristics/ income/capital assets/ education/ readership, mass media, and 'cultural' exposure