Seminari
8 ottobre, 2009

Real Wage Inequality


Dove: Milan
Sede:

Fondazione Eni Enrico Mattei 
Corso Magenta 63
20123 Milan

Come raggiungere: Mappa di Google
Orario dell'evento:


h. 12.00 Seminar
h 13.00 Light Lunch

Informazione:

Francesca Polatti, francesca.polatti@feem.it

Speaker:

Enrico Moretti, UC Berkeley, NBER, CEPR and IZA

Abstract

A large literature has documented a significant increase in the difference between the wage of college graduates and high school graduates over the past 30 years. I show that from 1980 to 2000, college graduates have experienced relatively larger increases in cost of living, because they have increasingly concentrated in metropolitan areas that are characterized by a high cost of housing. When I deflate nominal wages using a new CPI that allows for changes in the cost of housing to vary across metropolitan areas, I find that the difference between the wage of college graduates and high school graduates is lower in real terms than in nominal terms and has grown less. At least 22% of the documented increase in college premium is accounted for by differences in the cost of living. The implications of this finding for changes in well-being inequality depend on why college graduates sort into expensive cities. Using a simple general equilibrium model of the labor and housing markets, I consider two alternative explanations. First, it is possible that the relative supply of college graduates increases in expensive cities because college graduates are increasingly attracted by amenities located in those cities. In this case, the higher cost of housing reflects consumption of desirable local amenities, and there may still be a significant increase in well-being inequality even if the increase in real wage inequality is limited. Alternatively, it is possible that the relative demand for college graduates increases in expensive cities due to shifts in the relative productivity of skilled labor. In this case, the relative increase in skilled workers’ standard of living is offset by the higher cost of living. The evidence indicates that changes in the geographical location of different skill groups are mostly driven by changes in their relative demand. I conclude that the increase in well-being disparities between 1980 and 2000 is smaller than the increase in nominal wage disparities that has been the focus of the previous literature.

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Real Wage Inequality - Paper
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Real Wage Inequality - Presentation

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