C hapter 2 provides the rationale for the areas o f inquiry investigated in the rem ainder o f the book. [...] N or will the study deal directly with o ther issues related to mobility such as the de-skilling o f labour o r the existence o f a credential society in which the labour force is over-educated fo r its needs. [...] Because this model decomposes the association between family o f. origin characteristics and the respondent’s occupational status into the intervening attainm ents o f education an d. first-job status, it is especially useful in showing the mechanisms by which social origins affect the socioeconomic statuses o f the offspring. [...] T hus, despite the criticisms that have been m ade o f the conventional linking o f occupational change, the growth o f education, and. [...] The Origins of the 1973 Canadian Mobility Study T he genre o f empirical studies, o f. which o u r study is a part, had its beginnings in the early 1950s with the investigation o f social mobility in G reat Britain, carried ou t u n d er the direction o f. David V. Glass (1954).