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Rethinking the Gains from Immigration: Theory and Evidence from the US

  • Ottaviano, Gianmarco
  • Peri, Giovanni

Recent influential empirical work has emphasized the negative impact immigrants have on the wages of US-born workers, arguing that immigration harms less educated American workers in particular and all US-born workers in general. Because US and foreign born workers belong to different skill groups that are imperfectly substitutable, one needs to articulate a production function that aggregates different types of labour (and accounts for complementarity and substitution effects) in order to calculate the various effects of immigrant labour on US-born labour. We introduce such a production function, making the crucial assumption that US and foreign-born workers with similar education and experience levels may nevertheless be imperfectly substitutable, and allowing for endogenous capital accumulation. This function successfully accounts for the negative impact of the relative skill levels of immigrants on the relative wages of US workers. However, contrary to the findings of previous literature, overall immigration generates a large positive effect on the average wages of US-born workers. We show evidence of this positive effect by estimating the impact of immigration on both average wages and housing values across US metropolitan areas (1970-2000). We also reproduce this positive effect by simulating the behaviour of average wages and housing prices in an open city-economy, with optimizing US-born agents who respond to an inflow of foreign-born workers of the size and composition comparable to the immigration of the 1990s.

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Paper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 5226.

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Date of creation: Sep 2005
Date of revision:
Handle: RePEc:cpr:ceprdp:5226
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  1. Antonio Ciccone & Giovanni Peri, 2005. "Long-Run Substitutability Between More and Less Educated Workers: Evidence from U.S. States, 1950-1990," The Review of Economics and Statistics, MIT Press, vol. 87(4), pages 652-663, November.
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  20. Albert Saiz, 2003. "Room in the Kitchen for the Melting Pot: Immigration and Rental Prices," The Review of Economics and Statistics, MIT Press, vol. 85(3), pages 502-521, August.
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