The Migration of Technical Workers – Out now

Michael S. Dahl and Olav Sorenson

Using panel data on the Danish population, we estimated the revealed preferences of scientists and engineers for the places in which they choose to work. Our results indicate that these technical workers exhibit substantial sensitivity to differences in wages but that they have even stronger preferences for living close to family and friends. The magnitude of these preferences, moreover, suggests that the greater geographic mobility of scientists and engineers, relative to the population as a whole, stems from more pronounced variation across regions in the wages that they can expect. These results remain robust to estimation on a sample of individuals who must select new places of work for reasons unrelated to their preferences—those who had been employed at establishments that discontinued operations.

Michael S. Dahl and Olav Sorenson (2010) “The migration of technical workers”,Journal of Urban Economics, Vol. 67 (1), pp. 33-45 [DOI Link]

Whom do new firms hire?

Michael S. Dahl and Steven Klepper

Using the matched employer-employee data set for Denmark and information on the founders of new firms, we analyze the hiring choices of all new firms that entered in 1995-2001. We develop a theoretical model in which the quality of a firm’s employees determines its average cost, a firm’s productivity is based on its pre-entry experience and persistent shocks, and over time firms learn about their productivity. The model predicts that more productive firms are larger and hire more talented employees, which gives rise to various predictions about how pre-entry experience, firm growth rates, and firm size influence the wages firms pay to their early hires. We find that beginning with the time of entry, larger firms consistently pay higher wages to their new hires. These are firms with greater survival prospects at the time of entry based on the pre-entry backgrounds of their founders and that grow at greater rates over time, both of which are predictive of the wages paid to new hires from the time of entry onward. Our findings suggest workers are allocated to firms according to their abilities, which can give rise to enduring firm capabilities.

The Social Attachment to Place

Michael S. Dahl and Olav Sorenson

Many theories either implicitly or explicitly assume that individuals readily move to locations that improve their financial well being. Other forces, however, counteract these tendencies; for example, people often wish to remain close to family and friends. We introduce a methodology for determining how individuals weight these countervailing forces, and estimate how both financial incentives and social factors influence the probability of geographic mobility in the Danish population from 2002 to 2003. Our results suggest that individuals respond to opportunities for higher pay elsewhere, but that their sensitivity to this factor pales in comparison to their preferences for living near family and friends.

Paper has been accepted for Social Forces, February 25, 2010.