Trade Effects on Labor Market Inequality
Summary
Global trade integration has reshaped labour markets and influenced the distribution of wages and employment opportunities both within and across countries. Theoretical frameworks such as the Heckscher–Ohlin and Stolper–Samuelson theorems predict that trade liberalisation leads to wage convergence for abundant factors and divergence for scarce factors, a pattern reinforced by skill‐biased technical change. Empirical evidence demonstrates that trade can narrow income gaps in some contexts by expanding high‐productivity industries and generating new employment in export sectors. However, it may also exacerbate wage dispersion when firms differ in technology adoption, scale economies or access to global value chains. In heterogeneous‐firm models, only the most productive firms enter export markets, creating wage premiums for workers in these firms while domestic counterparts face stagnating wages or job displacement. Supply‐chain fragmentation further complicates the picture by shifting labour demand across production stages, often benefiting skilled workers in high‐value segments. The net effect of trade on labour inequality depends on national endowments, policy frameworks, and institutional settings that shape labour mobility, bargaining power and the capacity to adjust through reallocation and retraining.
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Trade Effects on Labor Market Inequality publication trend
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Technical terms
Trade liberalisation: The reduction or removal of tariff and non‐tariff barriers to allow freer international exchange of goods and services.
Global value chains (GVCs): International networks of firms jointly involved in the production of goods or services, spanning multiple stages from design to distribution.
Skill premium: The wage differential favouring workers with higher levels of education or specialised skills relative to unskilled workers.
Wage dispersion: The variation in earnings across individuals or groups within a labour market, capturing both between‐firm and within‐firm differences.
References
- The effects of trade and services liberalization on wage inequality in India. International Review of Economics & Finance (2012).
- Trade liberalization and the wage gap: the role of vertical linkages and fixed costs. Review of World Economics (2017).
- GVC and wage dispersion. Firm-level evidence from employee?employer database. Equilibrium Quarterly Journal of Economics and Economic Policy (2021).
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