This paper provides some results of an empirical inquiry into the opinions on distributive justice with a representative sample of the Flemish working population. Earlier results, obtained with samples of students, are shown to be robust. Effort is the dominant criterion in opinions about justice in a production context. Profits and losses are treated asymmetrically. There is a lot of divergence in the opinions concerning the acceptability of seniority, innate capabilities and education as criteria for income differences. A logit analysis reveals that the choice of criteria of justice is to a certain extent induced by the self-interest of the respondents. However, ethical criteria like the tendency to redistribute income cannot be neglected.