Declining Migration within the US: The Role of the Labor Market Raven Molloy Federal Reserve Board of Governors

Interstate migration has decreased steadily since the 1980s. We show that this trend is not related to demographic and socioeconomic factors, but that it appears to be connected to a concurrent secular decline in labor market transitions—i.e. the fraction of workers changing employer, industry or occupation. We explore a number of reasons for the dual trends in geographic and labor market transitions, including changes in the distribution of job opportunities across space, polarization in the labor market, concerns of dual-career households, and changes in the net benefit to changing employers. We find little empirical support for all but the last of these hypotheses. Specifically, using data from three cohorts of the National Longitudinal Surveys spanning the 1970s to the 2000s, we find that wage gains associated with employer transitions have fallen, while the returns to staying with the same employer have not changed. We favor the interpretation that, at least from the 1990s to the 2000s, the distribution of outside offers has shifted in a way that has made labor market transitions, and thus geographic transitions, less desirable to workers. Disclaimer: Any opinions and conclusions expressed herein are those of the authors and do not indicate concurrence with other members of the research staff of the Federal Reserve, the Board of Governors, or the U.S. Census Bureau. All results have been reviewed to insure that no confidential information is disclosed. Acknowledgements: Wozniak would especially like to thank Frank Limehouse and the team at the Chicago Census Research Data Center for assistance with the restricted National Longitudinal Surveys. Ning Jia (University of Notre Dame) also provided invaluable research assistance. The authors would like to thank Moshe Buchinsky and James Spletzer as well as seminar participants at Temple University, the University of Notre Dame, UW-Madison, University of Illinois-Chicago, UC-Santa Barbara, and conference participants at the Federal Reserve System conference on Regional Analysis, the 2012 Census Research Data Center Researcher conference, and the Society of Labor Economists. Any errors are our own.