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Simon Gorlach

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Simon’s main field of research is labour economics, with interests extending to development economics and empirical microeconomics more broadly. In his thesis papers, he investigates migration behaviour in conjunction with other economic choices, where one focus is on the estimation of income profiles. His job market paper estimates the effect of a relaxation of financial constraints in a migrant’s country of origin on migration duration and repeat migration, as well as on the selection of those who stay in the destination country. Methodologically Simon combines exogenous variation from a randomized policy experiment with the structural estimation of a life cycle model of migration.

  • Labour
  • Development
  • Empirical microeconomics

"Borrowing Constraints, Migrant Selection, and the Dynamics of Return and Repeat Migration"

Abstract

This paper analyzes the impact of an exogenous change in household incomes in a migrant's sending country on migration duration, the incidence of repeat migration and migrant selection. Higher incomes raise the opportunity cost of residing abroad, but also help facilitate a costly migration if households are borrowing constrained. To disentangle these mechanisms and to evaluate the effects of income changes on return and re-migration choices, I formulate a dynamic life cycle model of consumption, employment, emigration, return and repeat migration, where households may borrow up to an endogenous limit that gives higher-income households better access to credit. Given unobserved individual productivity and heterogeneity in the preference for migrating, identification of the income dependence of borrowing limits requires exogenous variation in income. I thus exploit a policy experiment that randomly allocated cash transfers in Mexico. I find that an increase in income in Mexico reduces migration duration, and increases both the average number of trips per migrant and the responsiveness to economic conditions. The latter makes immigrants staying at the destination more positively selected, which has important implications for the assessment from a U.S. perspective of migrations that have been induced by higher incomes in Mexico.

  • Prof Christian Dustmann (University College London)
  • Prof Jerome Adda (Bocconi University)
  • Prof Uta Schoenberg (University College London)