Study on attitudes towards income: inequality, levelling of income, income policy, desirability of industrial action. Occupational career / changes in purchasing power / knowledge of actual income distribution and changes in it / equatability of income distribution / relation between income differences and social unrest / methods of levelling incomes / consequences going on levelling of incomes / conditions to cooperate with income levelling / propensity of society to cooperate with income levelling / political alignment, ideas on justice in society, redistribution of wealth, moderation of wages, employment, democracy / sources of income of household, satisfaction with income / relation between efforts in job and payment / policy of unions / propensity to participate in union actions, preferred methods of action / view on stratification of society, conflict of interests. Background variables: basic characteristics/ residence/ household characteristics/ occupation/employment/ income/capital assets/ education/ politics/ religion/ organizational membership