The Make-Up of a Regression Coefficient: An Application to Gender

24 Pages Posted: 29 Jun 2011

See all articles by M. Grazia Pittau

M. Grazia Pittau

University of Rome I

Shlomo Yitzhaki

Hebrew University of Jerusalem - Department of Economics; National Bureau of Economic Research (NBER)

Roberto Zelli

University of Rome I

Date Written: June 28, 2011

Abstract

In this paper we illustrate the potential use of an old/new methodology which combines the use of concentration curves in order to investigate the components that make up a regression coefficient. The illustration is based on examining gender differences in the effect of age on labor market participation in Italy. Women participation rate is substantially lower than men, but their age profile is similar. The most striking difference is in terms of hours of work: while Italian men increase their work effort until the age of 35, Italian women reduce it until the age of 39. These results do not differ substantially when we split the working population into employed and self-employed. Earnings increase with age for both men and women, however the local regression coefficient is negative for Italian women in the age of 38-42. This evidence is accentuated when we focus on the employees.

Keywords: gini, OLS, concentration curves, regression decomposition, Italian labor market

Suggested Citation

Pittau, Maria Grazia and Yitzhaki, Shlomo and Zelli, Roberto, The Make-Up of a Regression Coefficient: An Application to Gender (June 28, 2011). Available at SSRN: https://ssrn.com/abstract=1873988 or http://dx.doi.org/10.2139/ssrn.1873988

Maria Grazia Pittau (Contact Author)

University of Rome I ( email )

Piazzale Aldo Moro 5
Rome, 00185
Italy

Shlomo Yitzhaki

Hebrew University of Jerusalem - Department of Economics ( email )

Mount Scopus
Jerusalem, 91905
Israel
+972 2 659 2201 (Phone)
+972 2 652 2319 (Fax)

National Bureau of Economic Research (NBER) ( email )

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

Roberto Zelli

University of Rome I ( email )

Piazzale Aldo Moro, 5
Rome, 00185
Italy

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