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Essays on Mobility

其他書名	Applications to Job Turnover, Returns to Seniority, and Poverty
出版	Cornell University, 2002
ISBN	04935028829780493502885
URL	http://books.google.com.hk/books?id=vxdEAQAACAAJ&hl=&source=gbs_api

註釋Most micro models of job mobility are rooted in the job search literature. However, it has long been recognized that changes in labor demand indicators such as sales shocks or technology shocks also have a strong impact on wages and employment at the firm or industry level. In the first essay, we take advantage of new matched employer-employee data to simultaneously estimate the wage and employment duration processes of a longitudinal sample of two million French workers employed in roughly one million firms and followed over 20 years. We show that taking this simultaneity into account is important in order to get unbiased estimates of the returns to seniority. We are also able to use this particular structure of the data set to distinguish the impact of job search and labor demand indicators on wages and employment at the job level for the first time. Our model allows for correlated individual and job unobserved heterogeneity in both processes. We find that heterogeneity is highly significant at both the job and the individual level. Exogeneity of seniority in the wage equation is strongly rejected. Once we take this endogeneity into account, we find that returns to seniority are close to zero. We also find that micro-level indicators of labor demand, such as changes in sales play a significant role in explaining both wage growth and job duration.