Ideal power-structure in firm / perception of, attitude to the general structure of society / capital versus labour / influence / equal chances / the role of trade-unions / activities in own trade-union / ideal power-structure in the trade-union ( Industriebond NVV ) / opinions and evaluation about the work of the union within firms / opinions about the union's organization and functioning and its most important objective / special questions for executive members' career-pattern / perception of the interest of members in meetings. Background variables: basic characteristics/ place of work/ occupation/employment/ income/capital assets/ education/ politics/ religion/ readership, mass media, and 'cultural' exposure/ organizational membership