How Does Cheap Access to Foreign Technology Impact the Informal Sector?

Why It Matters

The findings show that trade‑policy reforms can directly improve labor market formalization, raising wages and social protection for workers in developing economies. Policymakers can leverage tariff reductions on technology‑intensive inputs to accelerate structural transformation.

Key Takeaways

• Input tariffs fell 12 points, boosting formal employment probability 3.5%
• Skilled workers saw 4.6‑point rise in formal job transitions
• Sevenfold increase in U.S. input imports 1993‑2001
• Effects persist after controlling for maquiladoras and market access

Pulse Analysis

Mexico’s 1990s trade liberalisation, culminating in NAFTA, slashed tariffs on imported intermediate goods from over 14% to under 2%. This dramatic reduction opened the door for formal manufacturers to acquire advanced U.S. inputs at lower prices, raising their productivity and profitability. By lowering the cost gap between formal and informal firms, the policy created a fiscal incentive for firms to register, comply with labor regulations, and expand their formal workforce.

The empirical analysis by Bas and Bombarda (2026) links these tariff cuts to a clear labor reallocation. Using household‑survey data and industry‑level tariff variations, they find that a 12‑percentage‑point tariff reduction raises the probability of a worker being formally employed by 3.5 percentage points. The effect is amplified for high‑skill workers—those with more than 14 years of education—who experience a 4.6‑point increase. Robustness checks rule out alternative explanations such as the growth of maquiladoras or changes in export market access, underscoring the causal impact of cheaper foreign inputs.

For policymakers in other emerging markets, the Mexican case illustrates how targeted tariff reductions on technology‑intensive inputs can catalyze formal sector growth and improve worker outcomes. By fostering complementarity between skilled labor and imported inputs, trade reforms can generate higher wages, better job security, and expanded social‑security coverage. Future research should explore sector‑specific thresholds and the long‑run productivity spillovers to guide optimal tariff design in economies still dominated by informal employment.