摘要:Using results of a survey of vertical mobility author analyzes some factors which increase or decrease homogeneity of the class of collective owners. Social distance is studied which political leaders and economic managers cross before reaching their actual positions. During first decades the ruling class was an open group. But in time »the rule of close contacts-« started to prevail: in the class are predominantly mobilized members of the mediate class and only the elite members of the workers (and the latter only into the lowest strata of the ruling class). In this way the homogeneity of the class has been increasing. The age of entering the class is also analyzed. Because of the dependence of a position on a concrete function, the earlier an individual enters the class the stronger identification of immediate personal interests and general class interests is possible. In time, however, individuals enter the class in older and older age and homogenization is more difficult. At last, the stability of class positions is analyzed: in time it has. been increasing, particularly the position of managers.