Economic globalization and increasing earnings inequality in affluent democracies

Purpose – Since the 1960s, the affluent democracies have experienced substantial changes in earnings inequality at the same time as heightening economic globalization. This paper investigates the relationship between these two processes.

Methodology/Approach – I use fixed-effects models, and comprehensive measures of globalization and earnings inequality to scrutinize the relationship between the two in 18 affluent democracies. Although past studies concentrate on worker displacement, I examine how globalization affected earnings inequality before and after controlling for manufacturing employment and unemployment as indicators of displacement.

Findings – Initial evidence suggests net migration and investment openness have moderate positive effects, but trade openness has larger, more significant positive effects. In full models, only trade openness remains robustly significant. For a standard deviation increase in trade openness, earnings inequality should increase by between 1/5th and 2/5th of a standard deviation.

Originality/Value of paper – Beyond displacement, this study encourages investigation of power relations (e.g., class capacities of employers vs. workers) and institutional change (e.g., practices of firms) as mechanisms by which globalization contributes to inequality.