Occupational and Job Mobility in the US∗

We propose a new methodology to measure worker mobility across occupations and jobs in the US, building on the limited longitudinal dimension of monthly CPS data. For the period 1979–2006, we find that about 3.5% of male workers employed in two consecutive months report different three-digit occupations. This rate is procyclical, mildly rising in the 1980s and falling after 1995. We also revise upward current estimates of aggregate job-tojob mobility since 1994, from 2.7% to 3.2% of employment per month. Despite extreme similarity of average levels and time-series behavior, occupational and job mobility are only weakly correlated.