Deciphering Sex Segregation Vertical and Horizontal Inequalities in Ten National Labor Markets

Scholars and policy-makers increasingly treat occupational sex segregation as a generic indicator of female economic disadvantage. This view is difficult to reconcile with evidence that levels of sex segregation are lower in reputably ‘gender-traditional’ countries such as Italy, Japan, and Portugal than in ‘progressive’ Sweden and the United States. Understanding such seemingly anomalous patterns requires a two-dimensional conceptualization of occupational sex segregation – in particular, an analytical distinction between vertical and horizontal gender inequalities. Based on data from 10 industrialized countries, claims regarding (1) the hybrid nature of sex segregation and (2) the cultural and structural factors that influence its various components are empirically assessed. Results confirm that unequal distributions across the manual–non-manual divide (‘horizontal segregation’) and status differentials within these sectors (‘vertical segregation’) together account for a considerable share of occupational gender inequality. Gender-egalitarian cultural norms are associated with lower levels of vertical segregation in the non-manual sector, while postindustrial economic structures coincide with greater horizontal segregation (and more vertical segregation of non-manual occupations). The complex horizontal and vertical dynamics revealed here cast further doubt on unidimensional conceptualizations of sex segregation. They also provide the key for deciphering some long-standing empirical puzzles in the field.