Co-auteur
  • GUILLOUZOUIC--LE CORFF Arthur (1)
  • HENRY Emeric (1)
Type de Document
  • Working paper (4)
Publié en 2021-06 Collection Sciences Po Economics Discussion Papers : 2021-05
GUILLOUZOUIC--LE CORFF Arthur
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Using French data, we provide: a) causal evidence that a drop in local public goods provision decreases private sector activity, and b) evidence consistent with monopsony power of the public sector in local labor markets. We introduce a public sector with these two key characteristics in an otherwise standard spatial equilibrium model, and show that it delivers the main stylized facts established in our data, in particular, that the share of the public sector relative to the private is independent of the productivity of the city. We emphasize the tradeoffs between allowing governments to freely choose local public employment and wages (as in most of the US public sector), versus imposing rules that constrain public sector pay with some indexation to the local cost of living (as in many European countries). We show that wage indexation limits monopsony power – leading to a larger public sector – and is optimal if the indexation is sufficiently strong.

This paper introduces a spatial equilibrium model that relates earnings, employment, and internal migration responses to minimum wage increases. Population moves to or away from regions that increase minimum wages depending on the labor demand elasticity and on the financing of unemployment benefits. The empirical evidence shows that increases in minimum wages lead to increases in average wages and decreases in employment among the low-skilled. The labor demand elasticity is estimated to be above 1, in the model a necessary condition for the migration responses observed in the data. Low-skilled workers tend to leave the regions that increase minimum wages.

Publié en 2015-03 Collection Sciences Po Economics Discussion Papers : 2015-04
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How does the US labor market absorb low-skilled immigration? I address this question using the 1995 Mexican Peso Crisis, an exogenous push factor that raised Mexican migration to the US. In the short run, high-immigration states see their low-skilled labor force increase and native low-skilled wages decrease, with an implied local labor demand elasticity of -.7. Internal relocation dissipates this shock spatially. In the long run, the only lasting consequences are for low-skilled natives who entered the labor force in high-immigration years. A simple quantitative many-region model allows me to obtain the counterfactual local wage evolution absent the immigration shock.

Publié en 2015-02 Collection Sciences Po Economics Discussion Papers : 2015-01
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Previous literature shows that internal migration rates are strongly procyclical. This would seem to imply that geographic relocation does not help mitigate negative local economic shocks during recessions. This paper shows that this is not the case. I document that net in-migrationrates decreased in areas more affected by the Great Recession. Using various IV strategies that rely on the importance of the construction sector and the indebtedness of households before the crisis, I conclude that internal migration might help to alleviate up to one third of the effects of the crisis on wages in the most affected locations. This is due to a disproportionate decrease in in-migration into those locations rather than an increase in out-migration. More generally, I show that differences in population growth rates across locations are mainly explained by differences in in-migration rates rather than in out-migration rates. I introduce a model to guide the empirical analysis and to quantify the spill-over effects caused by internal migration.