The major development that warranted attention was the growth of nonproductive wage-earners, i.e. groups such as commercial and bank employees, office and service workers, etc., in short all those who are commonly referred to as 'white-collar' or 'tertiary sector' workers". (Classes in Contemporary Capitalism, NLB, 1975, pp. 193) There was a tendency at the time to assess this in terms of the 'em