"Relations between men in charge of the administrative branches of government and men who run the expanded corporations and unions are often close. Their collaboration may occur while each is an official in his respective hierarchy, or by means of personal shifting of positions; the labor leader accepts a government job or becomes the personnel man of a corporation; the big-business official becomes a dollar-a-year man; the government expert accepts a position with the corporation his agency is attempting to regulate. Just how close the resemblance between governmental and business officials may be is shown by the ease and frequency with which men pass form one hierarchy to another. While such changes may seem mere incidents in an individual career, the meaning of such interpenetration of managerial elite goes beyond this, modifying the meaning of the upper brackets and the objective functions of the several big organizations" (White Collar: The American Middle Classes, 1951, p. 83).