We find that returns to occupational tenure are substantial. Everything else being constant, 5 years of occupational tenure are associated with an increase in wages of 12%-20%. Moreover, when occupational experience is taken into account, tenure with an industry or employer has relatively little...

We document and analyze the high level and the substantial increase in worker mobility in the United States over the 1968-97 period at various levels of occupational and industry aggregation. This is important in light of the recent findings that human capital of workers is largely occupation-...