EVERYBODY knows—or at least thinks he knows—that a millennial with one job must be after a new one. Today’s youngsters are thought to have little loyalty towards their employers and to be prone to “job-hop”. Millennials (ie, those born after about 1982) are indeed more likely to switch jobs than their older colleagues. But that is more a result of how old they are than of the era they were born in. In America at least, average job tenures have barely changed in recent decades.

Data from America’s Bureau of Labour Statistics show workers aged 25 and over now spend a median of 5.1 years with their employers, slightly more than in 1983 (see chart). Job tenure has declined for the lower end of that age group, but only slightly. Men between the ages of 25 and 34 now spend a median of 2.9 years with each employer, down from 3.2 years in 1983.

It is middle-aged men whose relationship with their employers has changed most dramatically. Partly because of a collapse in the...Continue reading