Wage Differentials: Trade Openness and Wage Bargaining


We build a theoretical model that incorporates unionization in the labor market into a Heckscher-Ohlin-Samuelson (HOS) framework to investigate the impact of unionization on the Stolper-Samuelson Theorem.
To capture the American economy case, we assume that unskilled labor in the manufactured goods sector is unionized, and that sector is intensive in skilled labor, and that trade liberalization increases the relative price of manufactured goods. In the HOS model, trade liberalization induces a reallocation of production towards the sector that uses intensively the country’s most abundant factor. The resulting change in relative labor demand impacts wage bargaining in the unionized sector, which, in turn, has a dampening eect on the Stolper-Samuelson eect. Moreover, wages of unionized workers are even less responsive to trade liberalization. Through traditional mandated-wages regressions, we show that skilled-wage dierentials changes were less pronounced among more unionized sectors in the U.S. economy for the 1979-1990 period.

Working Paper N° 03/2014

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